#include "cuda_runtime.h"
#include "device_launch_parameters.h"
#include <iostream>
#include <cmath>
#include <ctime>
using namespace std;

const int chunkCount = 1 << 20;
const int totalCount = chunkCount << 3;

// does c = erff(a+b)
__global__ void kernel(float* a, float* b, float* c)
{
  int tid = blockDim.x*blockIdx.x + threadIdx.x;
  if (tid < chunkCount)
    c[tid] = erff(a[tid] + b[tid]);
}



// 88 msec
int main1()
{
  cudaDeviceProp prop;
  int device;
  cudaGetDevice(&device);
  cudaGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  cudaEvent_t start, end;
  cudaEventCreate(&start);
  cudaEventCreate(&end);

  cudaStream_t stream;
  cudaStreamCreate(&stream);

  float *ha, *hb, *hc, *da, *db, *dc;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  cudaMalloc(&da, chunkSize);
  cudaMalloc(&db, chunkSize);
  cudaMalloc(&dc, chunkSize);
  cudaHostAlloc(&ha, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hb, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hc, totalSize, cudaHostAllocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  cudaEventRecord(start, stream);

  for (int i = 0; i < totalCount; i+= chunkCount)
  {
    cudaMemcpyAsync(da,ha+i,chunkSize,cudaMemcpyHostToDevice,stream);
    cudaMemcpyAsync(db,hb+i,chunkSize,cudaMemcpyHostToDevice,stream);
    kernel<<<chunkCount/64,64,0,stream>>>(da,db,dc);
    cudaMemcpyAsync(hc+i,dc,chunkSize,cudaMemcpyDeviceToHost,stream);
  }

  cudaStreamSynchronize(stream);

  cudaEventRecord(end, 0);
  cudaEventSynchronize(end);
  float elapsed;
  cudaEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  cudaFreeHost(ha);
  cudaFreeHost(hb);
  cudaFreeHost(hc);
  cudaFree(da);
  cudaFree(db);
  cudaFree(dc);
  cudaStreamDestroy(stream);

  getchar();
}

int main()
{
  cudaDeviceProp prop;
  int device;
  cudaGetDevice(&device);
  cudaGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  cudaEvent_t start, end;
  cudaEventCreate(&start);
  cudaEventCreate(&end);

  cudaStream_t stream1, stream2;
  cudaStreamCreate(&stream1);
  cudaStreamCreate(&stream2);

  float *ha, *hb, *hc, *d1a, *d1b, *d1c, *d2a, *d2b, *d2c;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  cudaMalloc(&d1a, chunkSize);
  cudaMalloc(&d1b, chunkSize);
  cudaMalloc(&d1c, chunkSize);
  cudaMalloc(&d2a, chunkSize);
  cudaMalloc(&d2b, chunkSize);
  cudaMalloc(&d2c, chunkSize);
  cudaHostAlloc(&ha, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hb, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hc, totalSize, cudaHostAllocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  cudaEventRecord(start, stream1);

  for (int i = 0; i < totalCount; i += chunkCount*2)
  {
    cudaMemcpyAsync(d1a,ha+i,chunkSize,cudaMemcpyHostToDevice,stream1);
    cudaMemcpyAsync(d1b,hb+i,chunkSize,cudaMemcpyHostToDevice,stream1);
    cudaMemcpyAsync(d2a,ha+i+chunkCount,chunkSize,cudaMemcpyHostToDevice,stream2);
    cudaMemcpyAsync(d2b,hb+i+chunkCount,chunkSize,cudaMemcpyHostToDevice,stream2);
    kernel<<<chunkCount/64,64,0,stream1>>>(d1a,d1b,d1c);
    kernel<<<chunkCount/64,64,0,stream1>>>(d2a,d2b,d2c);
    cudaMemcpyAsync(hc+i,d1c,chunkSize,cudaMemcpyDeviceToHost,stream1);
    cudaMemcpyAsync(hc+i+chunkCount,d2c,chunkSize,cudaMemcpyDeviceToHost,stream2);
  }

  cudaStreamSynchronize(stream1);
  cudaStreamSynchronize(stream2);

  cudaEventRecord(end, 0);
  cudaEventSynchronize(end);
  float elapsed;
  cudaEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  cudaFreeHost(ha);
  cudaFreeHost(hb);
  cudaFreeHost(hc);
  cudaFree(d1a);
  cudaFree(d1b);
  cudaFree(d1c);
  cudaFree(d2a);
  cudaFree(d2b);
  cudaFree(d2c);
  cudaStreamDestroy(stream1);
  cudaStreamDestroy(stream2);

  getchar();
}

// also 88 msec :(
int main2()
{
  cudaDeviceProp prop;
  int device;
  cudaGetDevice(&device);
  cudaGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  cudaEvent_t start, end;
  cudaEventCreate(&start);
  cudaEventCreate(&end);

  cudaStream_t stream1, stream2;
  cudaStreamCreate(&stream1);
  cudaStreamCreate(&stream2);

  float *ha, *hb, *hc, *d1a, *d1b, *d1c, *d2a, *d2b, *d2c;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  cudaMalloc(&d1a, chunkSize);
  cudaMalloc(&d1b, chunkSize);
  cudaMalloc(&d1c, chunkSize);
  cudaMalloc(&d2a, chunkSize);
  cudaMalloc(&d2b, chunkSize);
  cudaMalloc(&d2c, chunkSize);
  cudaHostAlloc(&ha, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hb, totalSize, cudaHostAllocDefault);
  cudaHostAlloc(&hc, totalSize, cudaHostAllocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  cudaEventRecord(start, stream1);

  for (int i = 0; i < totalCount; i+= chunkCount)
  {
    if ((i % 2) == 0)
    {
      cudaMemcpyAsync(d1a,ha+i,chunkSize,cudaMemcpyHostToDevice,stream1);
      cudaMemcpyAsync(d1b,hb+i,chunkSize,cudaMemcpyHostToDevice,stream1);
      kernel<<<chunkCount/64,64,0,stream1>>>(d1a,d1b,d1c);
      cudaMemcpyAsync(hc+i,d1c,chunkSize,cudaMemcpyDeviceToHost,stream1);
    } 
    else 
    {
      cudaMemcpyAsync(d2a,ha+i,chunkSize,cudaMemcpyHostToDevice,stream2);
      cudaMemcpyAsync(d2b,hb+i,chunkSize,cudaMemcpyHostToDevice,stream2);
      kernel<<<chunkCount/64,64,0,stream2>>>(d2a,d2b,d2c);
      cudaMemcpyAsync(hc+i,d2c,chunkSize,cudaMemcpyDeviceToHost,stream2);
    }
  }

  cudaStreamSynchronize(stream1);
  cudaStreamSynchronize(stream2);

  cudaEventRecord(end, 0);
  cudaEventSynchronize(end);
  float elapsed;
  cudaEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  cudaFreeHost(ha);
  cudaFreeHost(hb);
  cudaFreeHost(hc);
  cudaFree(d1a);
  cudaFree(d1b);
  cudaFree(d1c);
  cudaFree(d2a);
  cudaFree(d2b);
  cudaFree(d2c);
  cudaStreamDestroy(stream1);
  cudaStreamDestroy(stream2);

  getchar();
}
	.file	"tmpxft_003395d5_00000000-6_kernel.cudafe1.cpp"
	.text
#APP
	.globl _ZSt21ios_base_library_initv

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB3640:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE3640:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.type	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0, @function
_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0:
.LFB4298:
	.cfi_startproc
	xorl	%edx, %edx
	movl	$33554432, %esi
	jmp	cudaHostAlloc@PLT
	.cfi_endproc
.LFE4298:
	.size	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0, .-_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	.type	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0, @function
_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0:
.LFB4300:
	.cfi_startproc
	movl	$4194304, %esi
	jmp	cudaMalloc@PLT
	.cfi_endproc
.LFE4300:
	.size	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0, .-_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	.align 2
	.type	_ZNSolsEPFRSoS_E.isra.0, @function
_ZNSolsEPFRSoS_E.isra.0:
.LFB4301:
	.cfi_startproc
	jmp	*%rsi
	.cfi_endproc
.LFE4301:
	.size	_ZNSolsEPFRSoS_E.isra.0, .-_ZNSolsEPFRSoS_E.isra.0
	.globl	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
	.type	_Z29__device_stub__Z6kernelPfS_S_PfS_S_, @function
_Z29__device_stub__Z6kernelPfS_S_PfS_S_:
.LFB3662:
	.cfi_startproc
	endbr64
	subq	$136, %rsp
	.cfi_def_cfa_offset 144
	movq	%rdi, 24(%rsp)
	leaq	40(%rsp), %rcx
	leaq	48(%rsp), %rdi
	movq	%rsi, 16(%rsp)
	leaq	60(%rsp), %rsi
	movq	%rdx, 8(%rsp)
	leaq	32(%rsp), %rdx
	movq	%fs:40, %rax
	movq	%rax, 120(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rax
	movl	$1, 56(%rsp)
	movq	%rax, 96(%rsp)
	leaq	16(%rsp), %rax
	movq	%rax, 104(%rsp)
	leaq	8(%rsp), %rax
	movq	%rax, 112(%rsp)
	movabsq	$4294967297, %rax
	movq	%rax, 48(%rsp)
	movq	%rax, 60(%rsp)
	movl	$1, 68(%rsp)
	call	__cudaPopCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L5
	pushq	40(%rsp)
	.cfi_def_cfa_offset 152
	leaq	_Z6kernelPfS_S_(%rip), %rdi
	pushq	40(%rsp)
	.cfi_def_cfa_offset 160
	movq	76(%rsp), %rcx
	movl	84(%rsp), %r8d
	movq	64(%rsp), %rsi
	movl	72(%rsp), %edx
	leaq	112(%rsp), %r9
	call	cudaLaunchKernel@PLT
	popq	%rax
	.cfi_def_cfa_offset 152
	popq	%rdx
	.cfi_def_cfa_offset 144
.L5:
	movq	120(%rsp), %rax
	subq	%fs:40, %rax
	je	.L7
	call	__stack_chk_fail@PLT
.L7:
	addq	$136, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3662:
	.size	_Z29__device_stub__Z6kernelPfS_S_PfS_S_, .-_Z29__device_stub__Z6kernelPfS_S_PfS_S_
	.globl	_Z6kernelPfS_S_
	.type	_Z6kernelPfS_S_, @function
_Z6kernelPfS_S_:
.LFB3663:
	.cfi_startproc
	endbr64
	jmp	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
	.cfi_endproc
.LFE3663:
	.size	_Z6kernelPfS_S_, .-_Z6kernelPfS_S_
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"This won't work"
.LC1:
	.string	"This took "
.LC2:
	.string	" msec"
	.text
	.globl	_Z5main1v
	.type	_Z5main1v, @function
_Z5main1v:
.LFB3635:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	subq	$1160, %rsp
	.cfi_def_cfa_offset 1184
	movq	%fs:40, %rax
	movq	%rax, 1144(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rdi
	call	cudaGetDevice@PLT
	movl	12(%rsp), %esi
	leaq	112(%rsp), %rdi
	call	cudaGetDeviceProperties_v2@PLT
	cmpl	$0, 496(%rsp)
	jne	.L12
	leaq	.LC0(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	1144(%rsp), %rax
	subq	%fs:40, %rax
	je	.L16
	call	__stack_chk_fail@PLT
.L12:
	leaq	16(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$2147483647, %ebp
	call	cudaEventCreate@PLT
	leaq	24(%rsp), %rdi
	call	cudaEventCreate@PLT
	leaq	32(%rsp), %rdi
	call	cudaStreamCreate@PLT
	leaq	64(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	72(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	80(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	40(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	48(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	56(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L13:
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	40(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	48(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	addq	$4, %rbx
	cmpq	$33554432, %rbx
	jne	.L13
	movq	32(%rsp), %rsi
	movq	16(%rsp), %rdi
	movl	$67108865, %ebp
	xorl	%ebx, %ebx
	salq	$6, %rbp
	call	cudaEventRecord@PLT
.L15:
	movq	40(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movl	$4194304, %edx
	movq	64(%rsp), %rdi
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movq	48(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movq	72(%rsp), %rdi
	movl	$4194304, %edx
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movl	$262145, %edi
	xorl	%r8d, %r8d
	movq	%rbp, %rdx
	movq	32(%rsp), %r9
	salq	$14, %rdi
	movl	$1, %ecx
	movl	$1, %esi
	movq	%rbp, 100(%rsp)
	movl	$1, 108(%rsp)
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L14
	movq	80(%rsp), %rdx
	movq	72(%rsp), %rsi
	movq	64(%rsp), %rdi
	call	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
.L14:
	movq	56(%rsp), %rdi
	movq	32(%rsp), %r8
	movl	$2, %ecx
	movl	$4194304, %edx
	movq	80(%rsp), %rsi
	addq	%rbx, %rdi
	addq	$4194304, %rbx
	call	cudaMemcpyAsync@PLT
	cmpq	$33554432, %rbx
	jne	.L15
	movq	32(%rsp), %rdi
	call	cudaStreamSynchronize@PLT
	movq	24(%rsp), %rdi
	xorl	%esi, %esi
	call	cudaEventRecord@PLT
	movq	24(%rsp), %rdi
	call	cudaEventSynchronize@PLT
	movq	24(%rsp), %rdx
	movq	16(%rsp), %rsi
	leaq	100(%rsp), %rdi
	call	cudaEventElapsedTime@PLT
	leaq	.LC1(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	100(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	leaq	.LC2(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	40(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	48(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	56(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	64(%rsp), %rdi
	call	cudaFree@PLT
	movq	72(%rsp), %rdi
	call	cudaFree@PLT
	movq	80(%rsp), %rdi
	call	cudaFree@PLT
	movq	32(%rsp), %rdi
	call	cudaStreamDestroy@PLT
	call	getchar@PLT
.L16:
	addq	$1160, %rsp
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3635:
	.size	_Z5main1v, .-_Z5main1v
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB3636:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$1192, %rsp
	.cfi_def_cfa_offset 1232
	movq	%fs:40, %rax
	movq	%rax, 1176(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rdi
	call	cudaGetDevice@PLT
	movl	12(%rsp), %esi
	leaq	144(%rsp), %rdi
	call	cudaGetDeviceProperties_v2@PLT
	cmpl	$0, 528(%rsp)
	jne	.L22
	leaq	.LC0(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	jmp	.L23
.L22:
	leaq	16(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$2147483647, %ebp
	call	cudaEventCreate@PLT
	leaq	24(%rsp), %rdi
	call	cudaEventCreate@PLT
	leaq	32(%rsp), %rdi
	call	cudaStreamCreate@PLT
	leaq	40(%rsp), %rdi
	call	cudaStreamCreate@PLT
	leaq	72(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	80(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	88(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	96(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	104(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	112(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	48(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	56(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	64(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L24:
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	48(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	56(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	addq	$4, %rbx
	cmpq	$33554432, %rbx
	jne	.L24
	movq	32(%rsp), %rsi
	movq	16(%rsp), %rdi
	xorl	%ebx, %ebx
	movabsq	$4294967360, %r12
	movabsq	$4294983680, %r13
	call	cudaEventRecord@PLT
.L27:
	movq	48(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movl	$4194304, %edx
	movq	72(%rsp), %rdi
	leaq	4194304(%rbx), %rbp
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movq	56(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movq	80(%rsp), %rdi
	movl	$4194304, %edx
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movq	48(%rsp), %rsi
	movq	40(%rsp), %r8
	movl	$1, %ecx
	movq	96(%rsp), %rdi
	movl	$4194304, %edx
	addq	%rbp, %rsi
	call	cudaMemcpyAsync@PLT
	movq	56(%rsp), %rsi
	movq	40(%rsp), %r8
	movl	$1, %ecx
	movq	104(%rsp), %rdi
	movl	$4194304, %edx
	addq	%rbp, %rsi
	call	cudaMemcpyAsync@PLT
	movq	32(%rsp), %r9
	xorl	%r8d, %r8d
	movq	%r12, %rdx
	movl	$1, %ecx
	movq	%r13, %rdi
	movl	$1, %esi
	movq	%r12, 132(%rsp)
	movl	$1, 140(%rsp)
	movq	%r13, 120(%rsp)
	movl	$1, 128(%rsp)
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L25
	movq	88(%rsp), %rdx
	movq	80(%rsp), %rsi
	movq	72(%rsp), %rdi
	call	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
.L25:
	movq	32(%rsp), %r9
	xorl	%r8d, %r8d
	movq	%r12, %rdx
	movl	$1, %ecx
	movq	%r13, %rdi
	movl	$1, %esi
	movq	%r12, 132(%rsp)
	movl	$1, 140(%rsp)
	movq	%r13, 120(%rsp)
	movl	$1, 128(%rsp)
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L26
	movq	112(%rsp), %rdx
	movq	104(%rsp), %rsi
	movq	96(%rsp), %rdi
	call	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
.L26:
	movq	64(%rsp), %rdi
	movq	32(%rsp), %r8
	movl	$2, %ecx
	movl	$4194304, %edx
	movq	88(%rsp), %rsi
	addq	%rbx, %rdi
	addq	$8388608, %rbx
	call	cudaMemcpyAsync@PLT
	movq	64(%rsp), %rdi
	movq	40(%rsp), %r8
	movl	$2, %ecx
	movq	112(%rsp), %rsi
	movl	$4194304, %edx
	addq	%rbp, %rdi
	call	cudaMemcpyAsync@PLT
	cmpq	$33554432, %rbx
	jne	.L27
	movq	32(%rsp), %rdi
	call	cudaStreamSynchronize@PLT
	movq	40(%rsp), %rdi
	call	cudaStreamSynchronize@PLT
	movq	24(%rsp), %rdi
	xorl	%esi, %esi
	call	cudaEventRecord@PLT
	movq	24(%rsp), %rdi
	call	cudaEventSynchronize@PLT
	movq	24(%rsp), %rdx
	movq	16(%rsp), %rsi
	leaq	132(%rsp), %rdi
	call	cudaEventElapsedTime@PLT
	leaq	.LC1(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	132(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	leaq	.LC2(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	48(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	56(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	64(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	72(%rsp), %rdi
	call	cudaFree@PLT
	movq	80(%rsp), %rdi
	call	cudaFree@PLT
	movq	88(%rsp), %rdi
	call	cudaFree@PLT
	movq	96(%rsp), %rdi
	call	cudaFree@PLT
	movq	104(%rsp), %rdi
	call	cudaFree@PLT
	movq	112(%rsp), %rdi
	call	cudaFree@PLT
	movq	32(%rsp), %rdi
	call	cudaStreamDestroy@PLT
	movq	40(%rsp), %rdi
	call	cudaStreamDestroy@PLT
	call	getchar@PLT
.L23:
	movq	1176(%rsp), %rax
	subq	%fs:40, %rax
	je	.L28
	call	__stack_chk_fail@PLT
.L28:
	addq	$1192, %rsp
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3636:
	.size	main, .-main
	.text
	.globl	_Z5main2v
	.type	_Z5main2v, @function
_Z5main2v:
.LFB3637:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	subq	$1192, %rsp
	.cfi_def_cfa_offset 1216
	movq	%fs:40, %rax
	movq	%rax, 1176(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rdi
	call	cudaGetDevice@PLT
	movl	12(%rsp), %esi
	leaq	144(%rsp), %rdi
	call	cudaGetDeviceProperties_v2@PLT
	cmpl	$0, 528(%rsp)
	jne	.L33
	leaq	.LC0(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	1176(%rsp), %rax
	subq	%fs:40, %rax
	je	.L37
	call	__stack_chk_fail@PLT
.L33:
	leaq	16(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$2147483647, %ebp
	call	cudaEventCreate@PLT
	leaq	24(%rsp), %rdi
	call	cudaEventCreate@PLT
	leaq	32(%rsp), %rdi
	call	cudaStreamCreate@PLT
	leaq	40(%rsp), %rdi
	call	cudaStreamCreate@PLT
	leaq	72(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	80(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	88(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	96(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	104(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	112(%rsp), %rdi
	call	_Z10cudaMallocIfE9cudaErrorPPT_m.constprop.0.isra.0
	leaq	48(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	56(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	leaq	64(%rsp), %rdi
	call	_Z13cudaHostAllocIfE9cudaErrorPPT_mj.constprop.0.isra.0
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L34:
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	48(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	call	rand@PLT
	cltd
	idivl	%ebp
	cvtsi2ssl	%eax, %xmm0
	movq	56(%rsp), %rax
	movss	%xmm0, (%rax,%rbx)
	addq	$4, %rbx
	cmpq	$33554432, %rbx
	jne	.L34
	movq	32(%rsp), %rsi
	movq	16(%rsp), %rdi
	movl	$67108865, %ebp
	xorl	%ebx, %ebx
	salq	$6, %rbp
	call	cudaEventRecord@PLT
.L36:
	movq	48(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movl	$4194304, %edx
	movq	72(%rsp), %rdi
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movq	56(%rsp), %rsi
	movq	32(%rsp), %r8
	movl	$1, %ecx
	movq	80(%rsp), %rdi
	movl	$4194304, %edx
	addq	%rbx, %rsi
	call	cudaMemcpyAsync@PLT
	movl	$262145, %edi
	xorl	%r8d, %r8d
	movq	%rbp, %rdx
	movq	32(%rsp), %r9
	salq	$14, %rdi
	movl	$1, %ecx
	movl	$1, %esi
	movq	%rbp, 132(%rsp)
	movl	$1, 140(%rsp)
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L35
	movq	88(%rsp), %rdx
	movq	80(%rsp), %rsi
	movq	72(%rsp), %rdi
	call	_Z29__device_stub__Z6kernelPfS_S_PfS_S_
.L35:
	movq	64(%rsp), %rdi
	movq	32(%rsp), %r8
	movl	$2, %ecx
	movl	$4194304, %edx
	movq	88(%rsp), %rsi
	addq	%rbx, %rdi
	addq	$4194304, %rbx
	call	cudaMemcpyAsync@PLT
	cmpq	$33554432, %rbx
	jne	.L36
	movq	32(%rsp), %rdi
	call	cudaStreamSynchronize@PLT
	movq	40(%rsp), %rdi
	call	cudaStreamSynchronize@PLT
	movq	24(%rsp), %rdi
	xorl	%esi, %esi
	call	cudaEventRecord@PLT
	movq	24(%rsp), %rdi
	call	cudaEventSynchronize@PLT
	movq	24(%rsp), %rdx
	movq	16(%rsp), %rsi
	leaq	132(%rsp), %rdi
	call	cudaEventElapsedTime@PLT
	leaq	.LC1(%rip), %rsi
	leaq	_ZSt4cout(%rip), %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	cvtss2sd	132(%rsp), %xmm0
	movq	%rax, %rdi
	call	_ZNSo9_M_insertIdEERSoT_@PLT
	leaq	.LC2(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_@GOTPCREL(%rip), %rsi
	movq	%rax, %rdi
	call	_ZNSolsEPFRSoS_E.isra.0
	movq	48(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	56(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	64(%rsp), %rdi
	call	cudaFreeHost@PLT
	movq	72(%rsp), %rdi
	call	cudaFree@PLT
	movq	80(%rsp), %rdi
	call	cudaFree@PLT
	movq	88(%rsp), %rdi
	call	cudaFree@PLT
	movq	96(%rsp), %rdi
	call	cudaFree@PLT
	movq	104(%rsp), %rdi
	call	cudaFree@PLT
	movq	112(%rsp), %rdi
	call	cudaFree@PLT
	movq	32(%rsp), %rdi
	call	cudaStreamDestroy@PLT
	movq	40(%rsp), %rdi
	call	cudaStreamDestroy@PLT
	call	getchar@PLT
.L37:
	addq	$1192, %rsp
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3637:
	.size	_Z5main2v, .-_Z5main2v
	.section	.rodata.str1.1
.LC3:
	.string	"_Z6kernelPfS_S_"
	.section	.text.startup
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB3665:
	.cfi_startproc
	endbr64
	pushq	%rax
	.cfi_def_cfa_offset 16
	leaq	_ZL15__fatDeviceText(%rip), %rdi
	call	__cudaRegisterFatBinary@PLT
	pushq	$0
	.cfi_def_cfa_offset 24
	xorl	%r9d, %r9d
	orl	$-1, %r8d
	pushq	$0
	.cfi_def_cfa_offset 32
	leaq	.LC3(%rip), %rdx
	movq	%rax, %rdi
	leaq	_Z6kernelPfS_S_(%rip), %rsi
	pushq	$0
	.cfi_def_cfa_offset 40
	movq	%rdx, %rcx
	pushq	$0
	.cfi_def_cfa_offset 48
	movq	%rax, _ZL20__cudaFatCubinHandle(%rip)
	call	__cudaRegisterFunction@PLT
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	addq	$32, %rsp
	.cfi_def_cfa_offset 16
	call	__cudaRegisterFatBinaryEnd@PLT
	leaq	_ZL26__cudaUnregisterBinaryUtilv(%rip), %rdi
	popq	%rdx
	.cfi_def_cfa_offset 8
	jmp	atexit@PLT
	.cfi_endproc
.LFE3665:
	.size	_ZL24__sti____cudaRegisterAllv, .-_ZL24__sti____cudaRegisterAllv
	.section	.init_array,"aw"
	.align 8
	.quad	_ZL24__sti____cudaRegisterAllv
	.section	.nvFatBinSegment,"aw"
	.align 8
	.type	_ZL15__fatDeviceText, @object
	.size	_ZL15__fatDeviceText, 24
_ZL15__fatDeviceText:
	.long	1180844977
	.long	1
	.quad	fatbinData
	.quad	0
	.local	_ZL20__cudaFatCubinHandle
	.comm	_ZL20__cudaFatCubinHandle,8,8
	.ident	"GCC: (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

#include "hip/hip_runtime.h"

#include <iostream>
#include <cmath>
#include <ctime>
using namespace std;

const int chunkCount = 1 << 20;
const int totalCount = chunkCount << 3;

// does c = erff(a+b)
__global__ void kernel(float* a, float* b, float* c)
{
  int tid = blockDim.x*blockIdx.x + threadIdx.x;
  if (tid < chunkCount)
    c[tid] = erff(a[tid] + b[tid]);
}



// 88 msec
int main1()
{
  hipDeviceProp_t prop;
  int device;
  hipGetDevice(&device);
  hipGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  hipEvent_t start, end;
  hipEventCreate(&start);
  hipEventCreate(&end);

  hipStream_t stream;
  hipStreamCreate(&stream);

  float *ha, *hb, *hc, *da, *db, *dc;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  hipMalloc(&da, chunkSize);
  hipMalloc(&db, chunkSize);
  hipMalloc(&dc, chunkSize);
  hipHostAlloc(&ha, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hb, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hc, totalSize, hipHostMallocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  hipEventRecord(start, stream);

  for (int i = 0; i < totalCount; i+= chunkCount)
  {
    hipMemcpyAsync(da,ha+i,chunkSize,hipMemcpyHostToDevice,stream);
    hipMemcpyAsync(db,hb+i,chunkSize,hipMemcpyHostToDevice,stream);
    kernel<<<chunkCount/64,64,0,stream>>>(da,db,dc);
    hipMemcpyAsync(hc+i,dc,chunkSize,hipMemcpyDeviceToHost,stream);
  }

  hipStreamSynchronize(stream);

  hipEventRecord(end, 0);
  hipEventSynchronize(end);
  float elapsed;
  hipEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  hipHostFree(ha);
  hipHostFree(hb);
  hipHostFree(hc);
  hipFree(da);
  hipFree(db);
  hipFree(dc);
  hipStreamDestroy(stream);

  getchar();
}

int main()
{
  hipDeviceProp_t prop;
  int device;
  hipGetDevice(&device);
  hipGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  hipEvent_t start, end;
  hipEventCreate(&start);
  hipEventCreate(&end);

  hipStream_t stream1, stream2;
  hipStreamCreate(&stream1);
  hipStreamCreate(&stream2);

  float *ha, *hb, *hc, *d1a, *d1b, *d1c, *d2a, *d2b, *d2c;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  hipMalloc(&d1a, chunkSize);
  hipMalloc(&d1b, chunkSize);
  hipMalloc(&d1c, chunkSize);
  hipMalloc(&d2a, chunkSize);
  hipMalloc(&d2b, chunkSize);
  hipMalloc(&d2c, chunkSize);
  hipHostAlloc(&ha, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hb, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hc, totalSize, hipHostMallocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  hipEventRecord(start, stream1);

  for (int i = 0; i < totalCount; i += chunkCount*2)
  {
    hipMemcpyAsync(d1a,ha+i,chunkSize,hipMemcpyHostToDevice,stream1);
    hipMemcpyAsync(d1b,hb+i,chunkSize,hipMemcpyHostToDevice,stream1);
    hipMemcpyAsync(d2a,ha+i+chunkCount,chunkSize,hipMemcpyHostToDevice,stream2);
    hipMemcpyAsync(d2b,hb+i+chunkCount,chunkSize,hipMemcpyHostToDevice,stream2);
    kernel<<<chunkCount/64,64,0,stream1>>>(d1a,d1b,d1c);
    kernel<<<chunkCount/64,64,0,stream1>>>(d2a,d2b,d2c);
    hipMemcpyAsync(hc+i,d1c,chunkSize,hipMemcpyDeviceToHost,stream1);
    hipMemcpyAsync(hc+i+chunkCount,d2c,chunkSize,hipMemcpyDeviceToHost,stream2);
  }

  hipStreamSynchronize(stream1);
  hipStreamSynchronize(stream2);

  hipEventRecord(end, 0);
  hipEventSynchronize(end);
  float elapsed;
  hipEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  hipHostFree(ha);
  hipHostFree(hb);
  hipHostFree(hc);
  hipFree(d1a);
  hipFree(d1b);
  hipFree(d1c);
  hipFree(d2a);
  hipFree(d2b);
  hipFree(d2c);
  hipStreamDestroy(stream1);
  hipStreamDestroy(stream2);

  getchar();
}

// also 88 msec :(
int main2()
{
  hipDeviceProp_t prop;
  int device;
  hipGetDevice(&device);
  hipGetDeviceProperties(&prop, device);
  if (!prop.deviceOverlap)
  {
    cout << "This won't work" << endl;
    return 0;
  }

  hipEvent_t start, end;
  hipEventCreate(&start);
  hipEventCreate(&end);

  hipStream_t stream1, stream2;
  hipStreamCreate(&stream1);
  hipStreamCreate(&stream2);

  float *ha, *hb, *hc, *d1a, *d1b, *d1c, *d2a, *d2b, *d2c;
  const int totalSize = totalCount * sizeof(float);
  const int chunkSize = chunkCount * sizeof(float);

  // allocate memory
  hipMalloc(&d1a, chunkSize);
  hipMalloc(&d1b, chunkSize);
  hipMalloc(&d1c, chunkSize);
  hipMalloc(&d2a, chunkSize);
  hipMalloc(&d2b, chunkSize);
  hipMalloc(&d2c, chunkSize);
  hipHostAlloc(&ha, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hb, totalSize, hipHostMallocDefault);
  hipHostAlloc(&hc, totalSize, hipHostMallocDefault);

  // fill a and b with noise
  srand((unsigned)time(0));
  for (int i = 0; i < totalCount; i++)
  {
    ha[i] = rand() / RAND_MAX;
    hb[i] = rand() / RAND_MAX;
  }

  hipEventRecord(start, stream1);

  for (int i = 0; i < totalCount; i+= chunkCount)
  {
    if ((i % 2) == 0)
    {
      hipMemcpyAsync(d1a,ha+i,chunkSize,hipMemcpyHostToDevice,stream1);
      hipMemcpyAsync(d1b,hb+i,chunkSize,hipMemcpyHostToDevice,stream1);
      kernel<<<chunkCount/64,64,0,stream1>>>(d1a,d1b,d1c);
      hipMemcpyAsync(hc+i,d1c,chunkSize,hipMemcpyDeviceToHost,stream1);
    } 
    else 
    {
      hipMemcpyAsync(d2a,ha+i,chunkSize,hipMemcpyHostToDevice,stream2);
      hipMemcpyAsync(d2b,hb+i,chunkSize,hipMemcpyHostToDevice,stream2);
      kernel<<<chunkCount/64,64,0,stream2>>>(d2a,d2b,d2c);
      hipMemcpyAsync(hc+i,d2c,chunkSize,hipMemcpyDeviceToHost,stream2);
    }
  }

  hipStreamSynchronize(stream1);
  hipStreamSynchronize(stream2);

  hipEventRecord(end, 0);
  hipEventSynchronize(end);
  float elapsed;
  hipEventElapsedTime(&elapsed, start, end);

  cout << "This took " << elapsed << " msec" << endl;

  hipHostFree(ha);
  hipHostFree(hb);
  hipHostFree(hc);
  hipFree(d1a);
  hipFree(d1b);
  hipFree(d1c);
  hipFree(d2a);
  hipFree(d2b);
  hipFree(d2c);
  hipStreamDestroy(stream1);
  hipStreamDestroy(stream2);

  getchar();
}
	.text
	.file	"kernel.hip"
                                        # Start of file scope inline assembly
	.globl	_ZSt21ios_base_library_initv

                                        # End of file scope inline assembly
	.globl	_Z21__device_stub__kernelPfS_S_ # -- Begin function _Z21__device_stub__kernelPfS_S_
	.type	_Z21__device_stub__kernelPfS_S_,@function
_Z21__device_stub__kernelPfS_S_:        # @_Z21__device_stub__kernelPfS_S_
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r13
	.cfi_def_cfa_offset 32
	pushq	%r12
	.cfi_def_cfa_offset 40
	pushq	%rbx
	.cfi_def_cfa_offset 48
	subq	$112, %rsp
	.cfi_def_cfa_offset 160
	.cfi_offset %rbx, -48
	.cfi_offset %r12, -40
	.cfi_offset %r13, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	40(%rsp), %rax
	movq	%rdi, (%rax)
	leaq	32(%rsp), %rcx
	movq	%rsi, (%rcx)
	leaq	24(%rsp), %rsi
	movq	%rdx, (%rsi)
	leaq	80(%rsp), %rbx
	movq	%rax, (%rbx)
	movq	%rcx, 8(%rbx)
	movq	%rsi, 16(%rbx)
	leaq	64(%rsp), %r14
	leaq	48(%rsp), %r15
	leaq	16(%rsp), %r12
	leaq	8(%rsp), %r13
	movq	%r14, %rdi
	movq	%r15, %rsi
	movq	%r12, %rdx
	movq	%r13, %rcx
	callq	__hipPopCallConfiguration
	movq	(%r14), %rsi
	movl	8(%r14), %edx
	movq	(%r15), %rcx
	movl	8(%r15), %r8d
	movl	$_Z6kernelPfS_S_, %edi
	movq	%rbx, %r9
	pushq	(%r13)
	.cfi_adjust_cfa_offset 8
	pushq	(%r12)
	.cfi_adjust_cfa_offset 8
	callq	hipLaunchKernel
	addq	$128, %rsp
	.cfi_adjust_cfa_offset -128
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end0:
	.size	_Z21__device_stub__kernelPfS_S_, .Lfunc_end0-_Z21__device_stub__kernelPfS_S_
	.cfi_endproc
                                        # -- End function
	.globl	_Z5main1v                       # -- Begin function _Z5main1v
	.type	_Z5main1v,@function
_Z5main1v:                              # @_Z5main1v
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r12
	.cfi_def_cfa_offset 32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	subq	$1560, %rsp                     # imm = 0x618
	.cfi_def_cfa_offset 1600
	.cfi_offset %rbx, -40
	.cfi_offset %r12, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	84(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevice
	movl	(%rbx), %esi
	leaq	88(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevicePropertiesR0600
	cmpl	$0, 384(%rbx)
	jne	.LBB1_1
# %bb.8:
	movl	$_ZSt4cout, %ebx
	movl	$_ZSt4cout, %edi
	movl	$.L.str, %esi
	movl	$15, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	_ZSt4cout(%rip), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	xorl	%eax, %eax
	addq	$1560, %rsp                     # imm = 0x618
	.cfi_def_cfa_offset 40
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	retq
.LBB1_1:
	.cfi_def_cfa_offset 1600
	leaq	72(%rsp), %rdi
	callq	hipEventCreate
	leaq	56(%rsp), %rdi
	callq	hipEventCreate
	leaq	8(%rsp), %rdi
	callq	hipStreamCreate
	leaq	32(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	24(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	16(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	48(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	40(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	64(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	xorl	%edi, %edi
	callq	time
	movl	%eax, %edi
	callq	srand
.LBB1_2:                                # =>This Inner Loop Header: Depth=1
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	48(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	40(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	incq	%rbx
	cmpq	$8388608, %rbx                  # imm = 0x800000
	jne	.LBB1_2
# %bb.3:
	movabsq	$4294967360, %rbx               # imm = 0x100000040
	movq	72(%rsp), %rdi
	movq	8(%rsp), %rsi
	callq	hipEventRecord
	movq	$-1048576, %r15                 # imm = 0xFFF00000
	xorl	%r12d, %r12d
	leaq	16320(%rbx), %r14
.LBB1_4:                                # =>This Inner Loop Header: Depth=1
	movq	32(%rsp), %rdi
	movq	48(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	24(%rsp), %rdi
	movq	40(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	8(%rsp), %r9
	movq	%r14, %rdi
	movl	$1, %esi
	movq	%rbx, %rdx
	movl	$1, %ecx
	xorl	%r8d, %r8d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB1_6
# %bb.5:                                #   in Loop: Header=BB1_4 Depth=1
	movq	32(%rsp), %rdi
	movq	24(%rsp), %rsi
	movq	16(%rsp), %rdx
	callq	_Z21__device_stub__kernelPfS_S_
.LBB1_6:                                #   in Loop: Header=BB1_4 Depth=1
	movq	64(%rsp), %rdi
	addq	%r12, %rdi
	movq	16(%rsp), %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$2, %ecx
	callq	hipMemcpyAsync
	addq	$1048576, %r15                  # imm = 0x100000
	addq	$4194304, %r12                  # imm = 0x400000
	cmpq	$7340032, %r15                  # imm = 0x700000
	jb	.LBB1_4
# %bb.7:
	movq	8(%rsp), %rdi
	callq	hipStreamSynchronize
	movq	56(%rsp), %rdi
	xorl	%esi, %esi
	callq	hipEventRecord
	movq	56(%rsp), %rdi
	callq	hipEventSynchronize
	movq	72(%rsp), %rsi
	movq	56(%rsp), %rdx
	leaq	80(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipEventElapsedTime
	movl	$_ZSt4cout, %edi
	movl	$.L.str.1, %esi
	callq	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
	movss	(%rbx), %xmm0                   # xmm0 = mem[0],zero,zero,zero
	movq	%rax, %rdi
	callq	_ZNSolsEf
	movl	$.L.str.2, %esi
	movq	%rax, %rdi
	callq	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
	movq	%rax, %rdi
	callq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_
	movq	48(%rsp), %rdi
	callq	hipHostFree
	movq	40(%rsp), %rdi
	callq	hipHostFree
	movq	64(%rsp), %rdi
	callq	hipHostFree
	movq	32(%rsp), %rdi
	callq	hipFree
	movq	24(%rsp), %rdi
	callq	hipFree
	movq	16(%rsp), %rdi
	callq	hipFree
	movq	8(%rsp), %rdi
	callq	hipStreamDestroy
	callq	getchar
.Lfunc_end1:
	.size	_Z5main1v, .Lfunc_end1-_Z5main1v
	.cfi_endproc
                                        # -- End function
	.globl	main                            # -- Begin function main
	.type	main,@function
main:                                   # @main
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r13
	.cfi_def_cfa_offset 32
	pushq	%r12
	.cfi_def_cfa_offset 40
	pushq	%rbx
	.cfi_def_cfa_offset 48
	subq	$1584, %rsp                     # imm = 0x630
	.cfi_def_cfa_offset 1632
	.cfi_offset %rbx, -48
	.cfi_offset %r12, -40
	.cfi_offset %r13, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	108(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevice
	movl	(%rbx), %esi
	leaq	112(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevicePropertiesR0600
	cmpl	$0, 384(%rbx)
	je	.LBB2_1
# %bb.2:
	leaq	96(%rsp), %rdi
	callq	hipEventCreate
	leaq	88(%rsp), %rdi
	callq	hipEventCreate
	movq	%rsp, %rdi
	callq	hipStreamCreate
	leaq	8(%rsp), %rdi
	callq	hipStreamCreate
	leaq	72(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	64(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	56(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	48(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	40(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	32(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	24(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	16(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	80(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	xorl	%edi, %edi
	callq	time
	movl	%eax, %edi
	callq	srand
.LBB2_3:                                # =>This Inner Loop Header: Depth=1
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	24(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	16(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	incq	%rbx
	cmpq	$8388608, %rbx                  # imm = 0x800000
	jne	.LBB2_3
# %bb.4:
	movabsq	$4294967360, %rbx               # imm = 0x100000040
	movq	96(%rsp), %rdi
	movq	(%rsp), %rsi
	callq	hipEventRecord
	movq	$-2097152, %r15                 # imm = 0xFFE00000
	movl	$4194304, %r12d                 # imm = 0x400000
	movq	$-4194304, %r13                 # imm = 0xFFC00000
	leaq	16320(%rbx), %r14
.LBB2_5:                                # =>This Inner Loop Header: Depth=1
	movq	72(%rsp), %rdi
	movq	24(%rsp), %rsi
	addq	%r12, %rsi
	addq	%r13, %rsi
	movq	(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	64(%rsp), %rdi
	movq	16(%rsp), %rsi
	addq	%r12, %rsi
	addq	%r13, %rsi
	movq	(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	48(%rsp), %rdi
	movq	24(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	40(%rsp), %rdi
	movq	16(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	(%rsp), %r9
	movq	%r14, %rdi
	movl	$1, %esi
	movq	%rbx, %rdx
	movl	$1, %ecx
	xorl	%r8d, %r8d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB2_7
# %bb.6:                                #   in Loop: Header=BB2_5 Depth=1
	movq	72(%rsp), %rdi
	movq	64(%rsp), %rsi
	movq	56(%rsp), %rdx
	callq	_Z21__device_stub__kernelPfS_S_
.LBB2_7:                                #   in Loop: Header=BB2_5 Depth=1
	movq	(%rsp), %r9
	movq	%r14, %rdi
	movl	$1, %esi
	movq	%rbx, %rdx
	movl	$1, %ecx
	xorl	%r8d, %r8d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB2_9
# %bb.8:                                #   in Loop: Header=BB2_5 Depth=1
	movq	48(%rsp), %rdi
	movq	40(%rsp), %rsi
	movq	32(%rsp), %rdx
	callq	_Z21__device_stub__kernelPfS_S_
.LBB2_9:                                #   in Loop: Header=BB2_5 Depth=1
	movq	80(%rsp), %rax
	leaq	(%rax,%r12), %rdi
	addq	$-4194304, %rdi                 # imm = 0xFFC00000
	movq	56(%rsp), %rsi
	movq	(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$2, %ecx
	callq	hipMemcpyAsync
	movq	80(%rsp), %rdi
	addq	%r12, %rdi
	movq	32(%rsp), %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$2, %ecx
	callq	hipMemcpyAsync
	addq	$2097152, %r15                  # imm = 0x200000
	addq	$8388608, %r12                  # imm = 0x800000
	cmpq	$6291456, %r15                  # imm = 0x600000
	jb	.LBB2_5
# %bb.10:
	movq	(%rsp), %rdi
	callq	hipStreamSynchronize
	movq	8(%rsp), %rdi
	callq	hipStreamSynchronize
	movq	88(%rsp), %rdi
	xorl	%esi, %esi
	callq	hipEventRecord
	movq	88(%rsp), %rdi
	callq	hipEventSynchronize
	movq	96(%rsp), %rsi
	movq	88(%rsp), %rdx
	leaq	104(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipEventElapsedTime
	movl	$_ZSt4cout, %edi
	movl	$.L.str.1, %esi
	movl	$10, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	cvtss2sd	(%rbx), %xmm0
	movl	$_ZSt4cout, %edi
	callq	_ZNSo9_M_insertIdEERSoT_
	movq	%rax, %rbx
	movl	$.L.str.2, %esi
	movl	$5, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	(%rbx), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movq	%rbx, %rdi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	movq	24(%rsp), %rdi
	callq	hipHostFree
	movq	16(%rsp), %rdi
	callq	hipHostFree
	movq	80(%rsp), %rdi
	callq	hipHostFree
	movq	72(%rsp), %rdi
	callq	hipFree
	movq	64(%rsp), %rdi
	callq	hipFree
	movq	56(%rsp), %rdi
	callq	hipFree
	movq	48(%rsp), %rdi
	callq	hipFree
	movq	40(%rsp), %rdi
	callq	hipFree
	movq	32(%rsp), %rdi
	callq	hipFree
	movq	(%rsp), %rdi
	callq	hipStreamDestroy
	movq	8(%rsp), %rdi
	callq	hipStreamDestroy
	callq	getchar
	jmp	.LBB2_11
.LBB2_1:
	movl	$_ZSt4cout, %ebx
	movl	$_ZSt4cout, %edi
	movl	$.L.str, %esi
	movl	$15, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	_ZSt4cout(%rip), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
.LBB2_11:
	xorl	%eax, %eax
	addq	$1584, %rsp                     # imm = 0x630
	.cfi_def_cfa_offset 48
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	retq
.Lfunc_end2:
	.size	main, .Lfunc_end2-main
	.cfi_endproc
                                        # -- End function
	.globl	_Z5main2v                       # -- Begin function _Z5main2v
	.type	_Z5main2v,@function
_Z5main2v:                              # @_Z5main2v
	.cfi_startproc
# %bb.0:
	pushq	%r15
	.cfi_def_cfa_offset 16
	pushq	%r14
	.cfi_def_cfa_offset 24
	pushq	%r12
	.cfi_def_cfa_offset 32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	subq	$1592, %rsp                     # imm = 0x638
	.cfi_def_cfa_offset 1632
	.cfi_offset %rbx, -40
	.cfi_offset %r12, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	116(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevice
	movl	(%rbx), %esi
	leaq	120(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipGetDevicePropertiesR0600
	cmpl	$0, 384(%rbx)
	jne	.LBB3_1
# %bb.8:
	movl	$_ZSt4cout, %ebx
	movl	$_ZSt4cout, %edi
	movl	$.L.str, %esi
	movl	$15, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	_ZSt4cout(%rip), %rax
	movq	-24(%rax), %rdi
	addq	%rbx, %rdi
	movl	$10, %esi
	callq	_ZNKSt9basic_iosIcSt11char_traitsIcEE5widenEc
	movsbl	%al, %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo3putEc
	movq	%rax, %rdi
	callq	_ZNSo5flushEv
	xorl	%eax, %eax
	addq	$1592, %rsp                     # imm = 0x638
	.cfi_def_cfa_offset 40
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	retq
.LBB3_1:
	.cfi_def_cfa_offset 1632
	leaq	80(%rsp), %rdi
	callq	hipEventCreate
	leaq	56(%rsp), %rdi
	callq	hipEventCreate
	leaq	8(%rsp), %rdi
	callq	hipStreamCreate
	leaq	72(%rsp), %rdi
	callq	hipStreamCreate
	leaq	32(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	24(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	16(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	104(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	96(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	88(%rsp), %rdi
	movl	$4194304, %esi                  # imm = 0x400000
	callq	hipMalloc
	leaq	48(%rsp), %rdi
	xorl	%ebx, %ebx
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	40(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	leaq	64(%rsp), %rdi
	movl	$33554432, %esi                 # imm = 0x2000000
	xorl	%edx, %edx
	callq	hipHostAlloc
	xorl	%edi, %edi
	callq	time
	movl	%eax, %edi
	callq	srand
.LBB3_2:                                # =>This Inner Loop Header: Depth=1
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	48(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	callq	rand
	cltq
	movq	%rax, %rcx
	shlq	$30, %rcx
	addq	%rax, %rcx
	movq	%rcx, %rax
	shrq	$63, %rax
	sarq	$61, %rcx
	addl	%eax, %ecx
	xorps	%xmm0, %xmm0
	cvtsi2ss	%ecx, %xmm0
	movq	40(%rsp), %rax
	movss	%xmm0, (%rax,%rbx,4)
	incq	%rbx
	cmpq	$8388608, %rbx                  # imm = 0x800000
	jne	.LBB3_2
# %bb.3:
	movabsq	$4294967360, %rbx               # imm = 0x100000040
	movq	80(%rsp), %rdi
	movq	8(%rsp), %rsi
	callq	hipEventRecord
	movq	$-1048576, %r15                 # imm = 0xFFF00000
	xorl	%r12d, %r12d
	leaq	16320(%rbx), %r14
.LBB3_4:                                # =>This Inner Loop Header: Depth=1
	movq	32(%rsp), %rdi
	movq	48(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	24(%rsp), %rdi
	movq	40(%rsp), %rsi
	addq	%r12, %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$1, %ecx
	callq	hipMemcpyAsync
	movq	8(%rsp), %r9
	movq	%r14, %rdi
	movl	$1, %esi
	movq	%rbx, %rdx
	movl	$1, %ecx
	xorl	%r8d, %r8d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB3_6
# %bb.5:                                #   in Loop: Header=BB3_4 Depth=1
	movq	32(%rsp), %rdi
	movq	24(%rsp), %rsi
	movq	16(%rsp), %rdx
	callq	_Z21__device_stub__kernelPfS_S_
.LBB3_6:                                #   in Loop: Header=BB3_4 Depth=1
	movq	64(%rsp), %rdi
	addq	%r12, %rdi
	movq	16(%rsp), %rsi
	movq	8(%rsp), %r8
	movl	$4194304, %edx                  # imm = 0x400000
	movl	$2, %ecx
	callq	hipMemcpyAsync
	addq	$1048576, %r15                  # imm = 0x100000
	addq	$4194304, %r12                  # imm = 0x400000
	cmpq	$7340032, %r15                  # imm = 0x700000
	jb	.LBB3_4
# %bb.7:
	movq	8(%rsp), %rdi
	callq	hipStreamSynchronize
	movq	72(%rsp), %rdi
	callq	hipStreamSynchronize
	movq	56(%rsp), %rdi
	xorl	%esi, %esi
	callq	hipEventRecord
	movq	56(%rsp), %rdi
	callq	hipEventSynchronize
	movq	80(%rsp), %rsi
	movq	56(%rsp), %rdx
	leaq	112(%rsp), %rbx
	movq	%rbx, %rdi
	callq	hipEventElapsedTime
	movl	$_ZSt4cout, %edi
	movl	$.L.str.1, %esi
	callq	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
	movss	(%rbx), %xmm0                   # xmm0 = mem[0],zero,zero,zero
	movq	%rax, %rdi
	callq	_ZNSolsEf
	movl	$.L.str.2, %esi
	movq	%rax, %rdi
	callq	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc
	movq	%rax, %rdi
	callq	_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_
	movq	48(%rsp), %rdi
	callq	hipHostFree
	movq	40(%rsp), %rdi
	callq	hipHostFree
	movq	64(%rsp), %rdi
	callq	hipHostFree
	movq	32(%rsp), %rdi
	callq	hipFree
	movq	24(%rsp), %rdi
	callq	hipFree
	movq	16(%rsp), %rdi
	callq	hipFree
	movq	104(%rsp), %rdi
	callq	hipFree
	movq	96(%rsp), %rdi
	callq	hipFree
	movq	88(%rsp), %rdi
	callq	hipFree
	movq	8(%rsp), %rdi
	callq	hipStreamDestroy
	movq	72(%rsp), %rdi
	callq	hipStreamDestroy
	callq	getchar
.Lfunc_end3:
	.size	_Z5main2v, .Lfunc_end3-_Z5main2v
	.cfi_endproc
                                        # -- End function
	.p2align	4, 0x90                         # -- Begin function __hip_module_ctor
	.type	__hip_module_ctor,@function
__hip_module_ctor:                      # @__hip_module_ctor
	.cfi_startproc
# %bb.0:
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	movq	__hip_gpubin_handle(%rip), %rdi
	testq	%rdi, %rdi
	jne	.LBB4_2
# %bb.1:
	movl	$__hip_fatbin_wrapper, %edi
	callq	__hipRegisterFatBinary
	movq	%rax, %rdi
	movq	%rax, __hip_gpubin_handle(%rip)
.LBB4_2:
	xorps	%xmm0, %xmm0
	movups	%xmm0, 16(%rsp)
	movups	%xmm0, (%rsp)
	movl	$_Z6kernelPfS_S_, %esi
	movl	$.L__unnamed_1, %edx
	movl	$.L__unnamed_1, %ecx
	movl	$-1, %r8d
	xorl	%r9d, %r9d
	callq	__hipRegisterFunction
	movl	$__hip_module_dtor, %edi
	addq	$40, %rsp
	.cfi_def_cfa_offset 8
	jmp	atexit                          # TAILCALL
.Lfunc_end4:
	.size	__hip_module_ctor, .Lfunc_end4-__hip_module_ctor
	.cfi_endproc
                                        # -- End function
	.p2align	4, 0x90                         # -- Begin function __hip_module_dtor
	.type	__hip_module_dtor,@function
__hip_module_dtor:                      # @__hip_module_dtor
	.cfi_startproc
# %bb.0:
	movq	__hip_gpubin_handle(%rip), %rdi
	testq	%rdi, %rdi
	je	.LBB5_2
# %bb.1:
	pushq	%rax
	.cfi_def_cfa_offset 16
	callq	__hipUnregisterFatBinary
	movq	$0, __hip_gpubin_handle(%rip)
	addq	$8, %rsp
	.cfi_def_cfa_offset 8
.LBB5_2:
	retq
.Lfunc_end5:
	.size	__hip_module_dtor, .Lfunc_end5-__hip_module_dtor
	.cfi_endproc
                                        # -- End function
	.type	_Z6kernelPfS_S_,@object         # @_Z6kernelPfS_S_
	.section	.rodata,"a",@progbits
	.globl	_Z6kernelPfS_S_
	.p2align	3, 0x0
_Z6kernelPfS_S_:
	.quad	_Z21__device_stub__kernelPfS_S_
	.size	_Z6kernelPfS_S_, 8

	.type	.L.str,@object                  # @.str
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str:
	.asciz	"This won't work"
	.size	.L.str, 16

	.type	.L.str.1,@object                # @.str.1
.L.str.1:
	.asciz	"This took "
	.size	.L.str.1, 11

	.type	.L.str.2,@object                # @.str.2
.L.str.2:
	.asciz	" msec"
	.size	.L.str.2, 6

	.type	.L__unnamed_1,@object           # @0
.L__unnamed_1:
	.asciz	"_Z6kernelPfS_S_"
	.size	.L__unnamed_1, 16

	.type	__hip_fatbin_wrapper,@object    # @__hip_fatbin_wrapper
	.section	.hipFatBinSegment,"a",@progbits
	.p2align	3, 0x0
__hip_fatbin_wrapper:
	.long	1212764230                      # 0x48495046
	.long	1                               # 0x1
	.quad	__hip_fatbin
	.quad	0
	.size	__hip_fatbin_wrapper, 24

	.type	__hip_gpubin_handle,@object     # @__hip_gpubin_handle
	.local	__hip_gpubin_handle
	.comm	__hip_gpubin_handle,8,8
	.section	.init_array,"aw",@init_array
	.p2align	3, 0x0
	.quad	__hip_module_ctor
	.type	__hip_cuid_,@object             # @__hip_cuid_
	.bss
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               # 0x0
	.size	__hip_cuid_, 1

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym _Z21__device_stub__kernelPfS_S_
	.addrsig_sym __hip_module_ctor
	.addrsig_sym __hip_module_dtor
	.addrsig_sym _Z6kernelPfS_S_
	.addrsig_sym _ZSt4cout
	.addrsig_sym __hip_fatbin
	.addrsig_sym __hip_fatbin_wrapper
	.addrsig_sym __hip_cuid_

	.text
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.protected	_Z6kernelPfS_S_         ; -- Begin function _Z6kernelPfS_S_
	.globl	_Z6kernelPfS_S_
	.p2align	8
	.type	_Z6kernelPfS_S_,@function
_Z6kernelPfS_S_:                        ; @_Z6kernelPfS_S_
; %bb.0:
	s_load_b32 s2, s[0:1], 0x24
	s_waitcnt lgkmcnt(0)
	s_and_b32 s2, s2, 0xffff
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | instid1(VALU_DEP_1)
	v_mad_u64_u32 v[1:2], null, s15, s2, v[0:1]
	s_mov_b32 s2, exec_lo
	v_cmpx_gt_i32_e32 0x100000, v1
	s_cbranch_execz .LBB0_6
; %bb.1:
	s_load_b128 s[4:7], s[0:1], 0x0
	v_ashrrev_i32_e32 v2, 31, v1
	s_load_b64 s[0:1], s[0:1], 0x10
	s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_1) | instid1(VALU_DEP_1)
	v_lshlrev_b64 v[0:1], 2, v[1:2]
	s_waitcnt lgkmcnt(0)
	v_add_co_u32 v2, vcc_lo, s4, v0
	s_delay_alu instid0(VALU_DEP_2)
	v_add_co_ci_u32_e32 v3, vcc_lo, s5, v1, vcc_lo
	v_add_co_u32 v4, vcc_lo, s6, v0
	v_add_co_ci_u32_e32 v5, vcc_lo, s7, v1, vcc_lo
	global_load_b32 v2, v[2:3], off
	global_load_b32 v3, v[4:5], off
	s_waitcnt vmcnt(0)
	v_add_f32_e32 v2, v2, v3
                                        ; implicit-def: $vgpr3
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_cmp_nlt_f32_e64 s2, |v2|, 1.0
	s_and_saveexec_b32 s3, s2
	s_delay_alu instid0(SALU_CYCLE_1)
	s_xor_b32 s2, exec_lo, s3
	s_cbranch_execz .LBB0_3
; %bb.2:
	s_mov_b32 s3, 0x378e98ab
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fma_f32 v3, |v2|, s3, 0xb9c68948
	v_fma_f32 v3, |v2|, v3, 0x3b7cd369
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fma_f32 v3, |v2|, v3, 0xbcc618b2
	v_fma_f32 v3, |v2|, v3, 0x3dda74e4
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fma_f32 v3, |v2|, v3, 0x3f228afd
	v_fma_f32 v3, |v2|, v3, 0x3e03c728
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fma_f32 v3, |v2|, v3, |v2|
	v_mul_f32_e32 v4, 0xbfb8aa3b, v3
	v_cmp_nlt_f32_e32 vcc_lo, 0x42ce8ed0, v3
	s_delay_alu instid0(VALU_DEP_2) | instskip(SKIP_1) | instid1(VALU_DEP_1)
	v_fma_f32 v5, 0xbfb8aa3b, v3, -v4
	v_rndne_f32_e32 v6, v4
	v_dual_fmamk_f32 v5, v3, 0xb2a5705f, v5 :: v_dual_sub_f32 v4, v4, v6
	s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_1) | instid1(VALU_DEP_2)
	v_add_f32_e32 v4, v4, v5
	v_cvt_i32_f32_e32 v5, v6
	v_exp_f32_e32 v4, v4
	s_waitcnt_depctr 0xfff
	v_ldexp_f32 v4, v4, v5
	s_delay_alu instid0(VALU_DEP_1) | instskip(SKIP_1) | instid1(VALU_DEP_2)
	v_cndmask_b32_e32 v4, 0, v4, vcc_lo
	v_cmp_ngt_f32_e32 vcc_lo, 0xc2b17218, v3
	v_cndmask_b32_e32 v3, 0x7f800000, v4, vcc_lo
	s_delay_alu instid0(VALU_DEP_1)
	v_sub_f32_e32 v3, 1.0, v3
.LBB0_3:                                ; %Flow
	s_and_not1_saveexec_b32 s2, s2
; %bb.4:
	v_mul_f32_e32 v3, v2, v2
	s_mov_b32 s3, 0xba1345e1
	s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
	v_fmaak_f32 v4, s3, v3, 0x3ba10414
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fmaak_f32 v4, v3, v4, 0xbcdac9b8
	v_fmaak_f32 v4, v3, v4, 0x3de703be
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_1)
	v_fmaak_f32 v4, v3, v4, 0xbec09330
	v_fmaak_f32 v3, v3, v4, 0x3e0375d0
	s_delay_alu instid0(VALU_DEP_1)
	v_fma_f32 v3, |v2|, v3, |v2|
; %bb.5:                                ; %_ZL4erfff.exit
	s_or_b32 exec_lo, exec_lo, s2
	v_add_co_u32 v0, vcc_lo, s0, v0
	s_delay_alu instid0(VALU_DEP_2)
	v_bfi_b32 v2, 0x7fffffff, v3, v2
	v_add_co_ci_u32_e32 v1, vcc_lo, s1, v1, vcc_lo
	global_store_b32 v[0:1], v2, off
.LBB0_6:
	s_nop 0
	s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
	s_endpgm
	.section	.rodata,"a",@progbits
	.p2align	6, 0x0
	.amdhsa_kernel _Z6kernelPfS_S_
		.amdhsa_group_segment_fixed_size 0
		.amdhsa_private_segment_fixed_size 0
		.amdhsa_kernarg_size 280
		.amdhsa_user_sgpr_count 15
		.amdhsa_user_sgpr_dispatch_ptr 0
		.amdhsa_user_sgpr_queue_ptr 0
		.amdhsa_user_sgpr_kernarg_segment_ptr 1
		.amdhsa_user_sgpr_dispatch_id 0
		.amdhsa_user_sgpr_private_segment_size 0
		.amdhsa_wavefront_size32 1
		.amdhsa_uses_dynamic_stack 0
		.amdhsa_enable_private_segment 0
		.amdhsa_system_sgpr_workgroup_id_x 1
		.amdhsa_system_sgpr_workgroup_id_y 0
		.amdhsa_system_sgpr_workgroup_id_z 0
		.amdhsa_system_sgpr_workgroup_info 0
		.amdhsa_system_vgpr_workitem_id 0
		.amdhsa_next_free_vgpr 7
		.amdhsa_next_free_sgpr 16
		.amdhsa_float_round_mode_32 0
		.amdhsa_float_round_mode_16_64 0
		.amdhsa_float_denorm_mode_32 3
		.amdhsa_float_denorm_mode_16_64 3
		.amdhsa_dx10_clamp 1
		.amdhsa_ieee_mode 1
		.amdhsa_fp16_overflow 0
		.amdhsa_workgroup_processor_mode 1
		.amdhsa_memory_ordered 1
		.amdhsa_forward_progress 0
		.amdhsa_shared_vgpr_count 0
		.amdhsa_exception_fp_ieee_invalid_op 0
		.amdhsa_exception_fp_denorm_src 0
		.amdhsa_exception_fp_ieee_div_zero 0
		.amdhsa_exception_fp_ieee_overflow 0
		.amdhsa_exception_fp_ieee_underflow 0
		.amdhsa_exception_fp_ieee_inexact 0
		.amdhsa_exception_int_div_zero 0
	.end_amdhsa_kernel
	.text
.Lfunc_end0:
	.size	_Z6kernelPfS_S_, .Lfunc_end0-_Z6kernelPfS_S_
                                        ; -- End function
	.section	.AMDGPU.csdata,"",@progbits
; Kernel info:
; codeLenInByte = 508
; NumSgprs: 18
; NumVgprs: 7
; ScratchSize: 0
; MemoryBound: 0
; FloatMode: 240
; IeeeMode: 1
; LDSByteSize: 0 bytes/workgroup (compile time only)
; SGPRBlocks: 2
; VGPRBlocks: 0
; NumSGPRsForWavesPerEU: 18
; NumVGPRsForWavesPerEU: 7
; Occupancy: 16
; WaveLimiterHint : 0
; COMPUTE_PGM_RSRC2:SCRATCH_EN: 0
; COMPUTE_PGM_RSRC2:USER_SGPR: 15
; COMPUTE_PGM_RSRC2:TRAP_HANDLER: 0
; COMPUTE_PGM_RSRC2:TGID_X_EN: 1
; COMPUTE_PGM_RSRC2:TGID_Y_EN: 0
; COMPUTE_PGM_RSRC2:TGID_Z_EN: 0
; COMPUTE_PGM_RSRC2:TIDIG_COMP_CNT: 0
	.text
	.p2alignl 7, 3214868480
	.fill 96, 4, 3214868480
	.type	__hip_cuid_,@object             ; @__hip_cuid_
	.section	.bss,"aw",@nobits
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               ; 0x0
	.size	__hip_cuid_, 1

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym __hip_cuid_
	.amdgpu_metadata
---
amdhsa.kernels:
  - .args:
      - .address_space:  global
        .offset:         0
        .size:           8
        .value_kind:     global_buffer
      - .address_space:  global
        .offset:         8
        .size:           8
        .value_kind:     global_buffer
      - .address_space:  global
        .offset:         16
        .size:           8
        .value_kind:     global_buffer
      - .offset:         24
        .size:           4
        .value_kind:     hidden_block_count_x
      - .offset:         28
        .size:           4
        .value_kind:     hidden_block_count_y
      - .offset:         32
        .size:           4
        .value_kind:     hidden_block_count_z
      - .offset:         36
        .size:           2
        .value_kind:     hidden_group_size_x
      - .offset:         38
        .size:           2
        .value_kind:     hidden_group_size_y
      - .offset:         40
        .size:           2
        .value_kind:     hidden_group_size_z
      - .offset:         42
        .size:           2
        .value_kind:     hidden_remainder_x
      - .offset:         44
        .size:           2
        .value_kind:     hidden_remainder_y
      - .offset:         46
        .size:           2
        .value_kind:     hidden_remainder_z
      - .offset:         64
        .size:           8
        .value_kind:     hidden_global_offset_x
      - .offset:         72
        .size:           8
        .value_kind:     hidden_global_offset_y
      - .offset:         80
        .size:           8
        .value_kind:     hidden_global_offset_z
      - .offset:         88
        .size:           2
        .value_kind:     hidden_grid_dims
    .group_segment_fixed_size: 0
    .kernarg_segment_align: 8
    .kernarg_segment_size: 280
    .language:       OpenCL C
    .language_version:
      - 2
      - 0
    .max_flat_workgroup_size: 1024
    .name:           _Z6kernelPfS_S_
    .private_segment_fixed_size: 0
    .sgpr_count:     18
    .sgpr_spill_count: 0
    .symbol:         _Z6kernelPfS_S_.kd
    .uniform_work_group_size: 1
    .uses_dynamic_stack: false
    .vgpr_count:     7
    .vgpr_spill_count: 0
    .wavefront_size: 32
    .workgroup_processor_mode: 1
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
