
#include <cuda.h>
#include <stdlib.h>
#include <iostream>
#include <stdio.h>
#include <ctime>

using namespace std;

//assignment constraints prevent the optimization of this function
//better approach would have been to take a max per block
//then sort the resulting maxes, with blocks of thread size 1024 you can cut down the serial
//sort from array size to (array size)/1024 or 2^(n-10) where n=log2(array size) assuming it is a power of 2

__global__ void getmaxcu(const unsigned int* numI, unsigned int* numO, const unsigned int size){
	extern __shared__ unsigned int sarr[];

	//thread id
	const unsigned int tdx=threadIdx.x;

	//global location in array
	unsigned int gdx=(blockDim.x)*blockIdx.x+threadIdx.x;

	//compare two initially
	sarr[tdx]=numI[gdx];

    for(unsigned int s=blockDim.x/2; s>0; s>>=1){
        if (tdx<s)
            sarr[tdx]=max(sarr[tdx],sarr[tdx+s]);
        __syncthreads();
    }

	if(!tdx){
		//atomically swap output value for multiple blocks
		atomicMax(numO, sarr[0]);
	}
}

int main(int argc, char *argv[]){

	cudaError_t err;
	unsigned int *numbers_temp_in, *numbers_temp_out;
	unsigned int *numbers_in, *numbers_out;
	unsigned int size;

	//blocksize is 1024 based on cuda5 (original test source) and then my own GPU after all the servers crashed
	const unsigned int blockSize=1024;

	//check for proper args
    if(argc!=2){
       printf("usage: maxseq num\nnum = size of the array\n");
       exit(1);
    }
   
	//get the size and then determine number of blocks in grid
    size = atol(argv[1]);  
	const unsigned int gridSize=ceil((float)size/blockSize);

	//numbers_out = single max element to return
	numbers_out=(unsigned int *)malloc(sizeof(unsigned int));
	if(!numbers_out){
		printf("Failed Allocation\n");
		exit(1);
	} 

	//numbers_in = array of randomized inputs based on size
	numbers_in=(unsigned int *)malloc(size*sizeof(unsigned int));
	if(!numbers_in){
		printf("Failed Allocation\n");
		exit(1);
	} 

	//input the array
    srand(time(NULL)); // setting a seed for the random number generator
    for(unsigned int i=0; i<size; ++i)
       numbers_in[i] = rand()%size;  

	//allocate the memory in the GPU
	cudaMalloc((void**)&numbers_temp_in, sizeof(unsigned int)*size);
	cudaMalloc((void**)&numbers_temp_out, sizeof(unsigned int));

	//copt over the inputs to the device
    cudaMemcpy((void*)numbers_temp_in, (void*)numbers_in, size*sizeof(unsigned int), cudaMemcpyHostToDevice);

	//set the grid/block dimensions
	dim3 dimGrid(gridSize);
	dim3 dimBlock(blockSize);

	//run the gpu max
	getmaxcu<<<dimGrid,dimBlock,blockSize*sizeof(unsigned int)>>>(numbers_temp_in, numbers_temp_out, size);

	//print out some information
	cout<<"Starting GPU Calculation:\nBlocksize: "<<blockSize<<"\nBlocks in grid: "<<gridSize<<"\n";

	//wait until completion
	cudaThreadSynchronize();
	err=cudaGetLastError();
	if(err!=cudaSuccess){
		printf("Err: %s\n", cudaGetErrorString(err));
		exit(1);
	}

	//get the output back from the device
	cudaMemcpy((void*)numbers_out, (void*)numbers_temp_out, sizeof(unsigned int), cudaMemcpyDeviceToHost);
	cudaThreadSynchronize();
	err=cudaGetLastError();
	if(err!=cudaSuccess){
		printf("Err Getting Output: %s\n", cudaGetErrorString(err));
		exit(1);
	}

	//print the max value	
	cout<<"The maximum number in the array is: "<<*numbers_out<<"\n";

	//free memory
	cudaFree(numbers_temp_in);
	cudaFree(numbers_temp_out);
	free(numbers_in);
	free(numbers_out);

	return 0;
}

	.file	"tmpxft_00336551_00000000-6_maxgpu.cudafe1.cpp"
	.text
#APP
	.globl _ZSt21ios_base_library_initv

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB3638:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE3638:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.globl	_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj
	.type	_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj, @function
_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj:
.LFB3660:
	.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
	movl	%edx, 12(%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	12(%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	.L2
	pushq	40(%rsp)
	.cfi_def_cfa_offset 152
	leaq	_Z8getmaxcuPKjPjj(%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
.L2:
	movq	120(%rsp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	addq	$136, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE3660:
	.size	_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj, .-_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj
	.globl	_Z8getmaxcuPKjPjj
	.type	_Z8getmaxcuPKjPjj, @function
_Z8getmaxcuPKjPjj:
.LFB3661:
	.cfi_startproc
	endbr64
	jmp	_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj
	.cfi_endproc
.LFE3661:
	.size	_Z8getmaxcuPKjPjj, .-_Z8getmaxcuPKjPjj
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"usage: maxseq num\nnum = size of the array\n"
.LC2:
	.string	"Failed Allocation\n"
.LC3:
	.string	"Starting GPU Calculation:\nBlocksize: "
.LC4:
	.string	"\nBlocks in grid: "
.LC5:
	.string	"\n"
.LC6:
	.string	"Err: %s\n"
.LC7:
	.string	"Err Getting Output: %s\n"
.LC8:
	.string	"The maximum number in the array is: "
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB3635:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	subq	$56, %rsp
	.cfi_def_cfa_offset 112
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	cmpl	$2, %edi
	je	.L9
	leaq	.LC0(%rip), %rsi
	movl	$2, %edi
	jmp	.L24
.L9:
	movq	8(%rsi), %rdi
	call	atol@PLT
	movl	%eax, %ebx
	movl	%eax, %r13d
	cvtsi2ssq	%rbx, %xmm0
	mulss	.LC1(%rip), %xmm0
	call	ceilf@PLT
	movl	$4, %edi
	cvttss2siq	%xmm0, %r14
	call	malloc@PLT
	movq	%rax, %rbp
	testq	%rax, %rax
	jne	.L12
.L13:
	leaq	.LC2(%rip), %rsi
	movl	$2, %edi
	xorl	%eax, %eax
.L24:
	call	__printf_chk@PLT
.L25:
	movl	$1, %edi
	call	exit@PLT
.L12:
	salq	$2, %rbx
	movq	%rbx, %rdi
	call	malloc@PLT
	movq	%rax, %r12
	testq	%rax, %rax
	je	.L13
	xorl	%edi, %edi
	xorl	%r15d, %r15d
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L14:
	cmpl	%r13d, %r15d
	jnb	.L27
	call	rand@PLT
	xorl	%edx, %edx
	divl	%r13d
	movl	%edx, (%r12,%r15,4)
	incq	%r15
	jmp	.L14
.L27:
	movq	%rsp, %rdi
	movq	%rbx, %rsi
	call	cudaMalloc@PLT
	leaq	8(%rsp), %rdi
	movl	$4, %esi
	call	cudaMalloc@PLT
	movq	(%rsp), %rdi
	movq	%rbx, %rdx
	movq	%r12, %rsi
	movl	$1, %ecx
	call	cudaMemcpy@PLT
	movl	%r14d, 16(%rsp)
	movl	$4194305, %edx
	movabsq	$4294967297, %rax
	movq	%rax, 20(%rsp)
	movq	16(%rsp), %rdi
	xorl	%r9d, %r9d
	salq	$10, %rdx
	movl	24(%rsp), %esi
	movl	$4096, %r8d
	movl	$1, %ecx
	call	__cudaPushCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L16
	movq	8(%rsp), %rsi
	movq	(%rsp), %rdi
	movl	%r13d, %edx
	call	_Z31__device_stub__Z8getmaxcuPKjPjjPKjPjj
.L16:
	leaq	_ZSt4cout(%rip), %rbx
	leaq	.LC3(%rip), %rsi
	movq	%rbx, %rdi
	leaq	.LC5(%rip), %r13
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	$1024, %esi
	movq	%rax, %rdi
	call	_ZNSo9_M_insertImEERSoT_@PLT
	leaq	.LC4(%rip), %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	%r14d, %esi
	movq	%rax, %rdi
	call	_ZNSo9_M_insertImEERSoT_@PLT
	movq	%r13, %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	call	cudaThreadSynchronize@PLT
	call	cudaGetLastError@PLT
	movl	%eax, %edi
	testl	%eax, %eax
	je	.L17
	call	cudaGetErrorString@PLT
	leaq	.LC6(%rip), %rsi
	movq	%rax, %rdx
	jmp	.L26
.L17:
	movq	8(%rsp), %rsi
	movq	%rbp, %rdi
	movl	$2, %ecx
	movl	$4, %edx
	call	cudaMemcpy@PLT
	call	cudaThreadSynchronize@PLT
	call	cudaGetLastError@PLT
	movl	%eax, %edi
	testl	%eax, %eax
	je	.L18
	call	cudaGetErrorString@PLT
	leaq	.LC7(%rip), %rsi
	movq	%rax, %rdx
.L26:
	movl	$2, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L25
.L18:
	leaq	.LC8(%rip), %rsi
	movq	%rbx, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movl	0(%rbp), %esi
	movq	%rax, %rdi
	call	_ZNSo9_M_insertImEERSoT_@PLT
	movq	%r13, %rsi
	movq	%rax, %rdi
	call	_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc@PLT
	movq	(%rsp), %rdi
	call	cudaFree@PLT
	movq	8(%rsp), %rdi
	call	cudaFree@PLT
	movq	%r12, %rdi
	call	free@PLT
	movq	%rbp, %rdi
	call	free@PLT
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	je	.L19
	call	__stack_chk_fail@PLT
.L19:
	addq	$56, %rsp
	.cfi_def_cfa_offset 56
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.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
	ret
	.cfi_endproc
.LFE3635:
	.size	main, .-main
	.section	.rodata.str1.1
.LC9:
	.string	"_Z8getmaxcuPKjPjj"
	.section	.text.startup
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB3663:
	.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	.LC9(%rip), %rdx
	movq	%rax, %rdi
	leaq	_Z8getmaxcuPKjPjj(%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
.LFE3663:
	.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
	.section	.rodata.cst4,"aM",@progbits,4
	.align 4
.LC1:
	.long	981467136
	.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 <stdlib.h>
#include <iostream>
#include <stdio.h>
#include <ctime>

using namespace std;

//assignment constraints prevent the optimization of this function
//better approach would have been to take a max per block
//then sort the resulting maxes, with blocks of thread size 1024 you can cut down the serial
//sort from array size to (array size)/1024 or 2^(n-10) where n=log2(array size) assuming it is a power of 2

__global__ void getmaxcu(const unsigned int* numI, unsigned int* numO, const unsigned int size){
	extern __shared__ unsigned int sarr[];

	//thread id
	const unsigned int tdx=threadIdx.x;

	//global location in array
	unsigned int gdx=(blockDim.x)*blockIdx.x+threadIdx.x;

	//compare two initially
	sarr[tdx]=numI[gdx];

    for(unsigned int s=blockDim.x/2; s>0; s>>=1){
        if (tdx<s)
            sarr[tdx]=max(sarr[tdx],sarr[tdx+s]);
        __syncthreads();
    }

	if(!tdx){
		//atomically swap output value for multiple blocks
		atomicMax(numO, sarr[0]);
	}
}

int main(int argc, char *argv[]){

	hipError_t err;
	unsigned int *numbers_temp_in, *numbers_temp_out;
	unsigned int *numbers_in, *numbers_out;
	unsigned int size;

	//blocksize is 1024 based on cuda5 (original test source) and then my own GPU after all the servers crashed
	const unsigned int blockSize=1024;

	//check for proper args
    if(argc!=2){
       printf("usage: maxseq num\nnum = size of the array\n");
       exit(1);
    }
   
	//get the size and then determine number of blocks in grid
    size = atol(argv[1]);  
	const unsigned int gridSize=ceil((float)size/blockSize);

	//numbers_out = single max element to return
	numbers_out=(unsigned int *)malloc(sizeof(unsigned int));
	if(!numbers_out){
		printf("Failed Allocation\n");
		exit(1);
	} 

	//numbers_in = array of randomized inputs based on size
	numbers_in=(unsigned int *)malloc(size*sizeof(unsigned int));
	if(!numbers_in){
		printf("Failed Allocation\n");
		exit(1);
	} 

	//input the array
    srand(time(NULL)); // setting a seed for the random number generator
    for(unsigned int i=0; i<size; ++i)
       numbers_in[i] = rand()%size;  

	//allocate the memory in the GPU
	hipMalloc((void**)&numbers_temp_in, sizeof(unsigned int)*size);
	hipMalloc((void**)&numbers_temp_out, sizeof(unsigned int));

	//copt over the inputs to the device
    hipMemcpy((void*)numbers_temp_in, (void*)numbers_in, size*sizeof(unsigned int), hipMemcpyHostToDevice);

	//set the grid/block dimensions
	dim3 dimGrid(gridSize);
	dim3 dimBlock(blockSize);

	//run the gpu max
	getmaxcu<<<dimGrid,dimBlock,blockSize*sizeof(unsigned int)>>>(numbers_temp_in, numbers_temp_out, size);

	//print out some information
	cout<<"Starting GPU Calculation:\nBlocksize: "<<blockSize<<"\nBlocks in grid: "<<gridSize<<"\n";

	//wait until completion
	hipDeviceSynchronize();
	err=hipGetLastError();
	if(err!=hipSuccess){
		printf("Err: %s\n", hipGetErrorString(err));
		exit(1);
	}

	//get the output back from the device
	hipMemcpy((void*)numbers_out, (void*)numbers_temp_out, sizeof(unsigned int), hipMemcpyDeviceToHost);
	hipDeviceSynchronize();
	err=hipGetLastError();
	if(err!=hipSuccess){
		printf("Err Getting Output: %s\n", hipGetErrorString(err));
		exit(1);
	}

	//print the max value	
	cout<<"The maximum number in the array is: "<<*numbers_out<<"\n";

	//free memory
	hipFree(numbers_temp_in);
	hipFree(numbers_temp_out);
	free(numbers_in);
	free(numbers_out);

	return 0;
}

	.text
	.file	"maxgpu.hip"
                                        # Start of file scope inline assembly
	.globl	_ZSt21ios_base_library_initv

                                        # End of file scope inline assembly
	.globl	_Z23__device_stub__getmaxcuPKjPjj # -- Begin function _Z23__device_stub__getmaxcuPKjPjj
	.type	_Z23__device_stub__getmaxcuPKjPjj,@function
_Z23__device_stub__getmaxcuPKjPjj:      # @_Z23__device_stub__getmaxcuPKjPjj
	.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	12(%rsp), %rsi
	movl	%edx, (%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	24(%rsp), %r12
	leaq	16(%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	$_Z8getmaxcuPKjPjj, %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	_Z23__device_stub__getmaxcuPKjPjj, .Lfunc_end0-_Z23__device_stub__getmaxcuPKjPjj
	.cfi_endproc
                                        # -- End function
	.section	.rodata.cst4,"aM",@progbits,4
	.p2align	2, 0x0                          # -- Begin function main
.LCPI1_0:
	.long	0x3a800000                      # float 9.765625E-4
	.text
	.globl	main
	.type	main,@function
main:                                   # @main
	.cfi_startproc
# %bb.0:
	pushq	%rbp
	.cfi_def_cfa_offset 16
	pushq	%r15
	.cfi_def_cfa_offset 24
	pushq	%r14
	.cfi_def_cfa_offset 32
	pushq	%r13
	.cfi_def_cfa_offset 40
	pushq	%r12
	.cfi_def_cfa_offset 48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	subq	$40, %rsp
	.cfi_def_cfa_offset 96
	.cfi_offset %rbx, -56
	.cfi_offset %r12, -48
	.cfi_offset %r13, -40
	.cfi_offset %r14, -32
	.cfi_offset %r15, -24
	.cfi_offset %rbp, -16
	cmpl	$2, %edi
	jne	.LBB1_12
# %bb.1:
	movq	8(%rsi), %rdi
	callq	atol
	movq	%rax, %r15
	movl	%r15d, %eax
	cvtsi2ss	%rax, %xmm0
	mulss	.LCPI1_0(%rip), %xmm0
	callq	ceilf@PLT
	movss	%xmm0, 20(%rsp)                 # 4-byte Spill
	movl	$4, %edi
	callq	malloc
	testq	%rax, %rax
	je	.LBB1_11
# %bb.2:
	movq	%rax, %rbx
	movl	%r15d, %r12d
	shlq	$2, %r12
	movq	%r12, %rdi
	callq	malloc
	testq	%rax, %rax
	je	.LBB1_11
# %bb.3:
	movq	%rax, %r14
	movq	%rbx, 32(%rsp)                  # 8-byte Spill
	cvttss2si	20(%rsp), %rbp          # 4-byte Folded Reload
	xorl	%edi, %edi
	callq	time
	movl	%eax, %edi
	callq	srand
	testl	%r15d, %r15d
	je	.LBB1_6
# %bb.4:                                # %.lr.ph.preheader
	movl	%r15d, %r13d
	xorl	%ebx, %ebx
.LBB1_5:                                # %.lr.ph
                                        # =>This Inner Loop Header: Depth=1
	callq	rand
	xorl	%edx, %edx
	divl	%r15d
	movl	%edx, (%r14,%rbx,4)
	incq	%rbx
	cmpq	%rbx, %r13
	jne	.LBB1_5
.LBB1_6:                                # %._crit_edge
	leaq	24(%rsp), %r13
	movq	%r13, %rdi
	movq	%r12, %rsi
	callq	hipMalloc
	leaq	8(%rsp), %rdi
	movl	$4, %esi
	callq	hipMalloc
	movq	(%r13), %rdi
	movq	%r14, %rsi
	movq	%r12, %rdx
	movl	$1, %ecx
	callq	hipMemcpy
	movl	%ebp, %r12d
	movq	%r12, %rdi
	btsq	$32, %rdi
	movabsq	$4294967296, %rdx               # imm = 0x100000000
	orq	$1024, %rdx                     # imm = 0x400
	movl	$4096, %r8d                     # imm = 0x1000
	movl	$1, %esi
	movl	$1, %ecx
	xorl	%r9d, %r9d
	callq	__hipPushCallConfiguration
	testl	%eax, %eax
	jne	.LBB1_8
# %bb.7:
	movq	24(%rsp), %rdi
	movq	8(%rsp), %rsi
	movl	%r15d, %edx
	callq	_Z23__device_stub__getmaxcuPKjPjj
.LBB1_8:
	movl	$_ZSt4cout, %edi
	movl	$.L.str.2, %esi
	movl	$37, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	$_ZSt4cout, %edi
	movl	$1024, %esi                     # imm = 0x400
	callq	_ZNSo9_M_insertImEERSoT_
	movq	%rax, %r15
	movl	$.L.str.3, %esi
	movl	$17, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	%r15, %rdi
	movq	%r12, %rsi
	callq	_ZNSo9_M_insertImEERSoT_
	movl	$.L.str.4, %esi
	movl	$1, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	callq	hipDeviceSynchronize
	callq	hipGetLastError
	testl	%eax, %eax
	movq	32(%rsp), %rbx                  # 8-byte Reload
	jne	.LBB1_15
# %bb.9:
	movq	8(%rsp), %rsi
	movl	$4, %edx
	movq	%rbx, %rdi
	movl	$2, %ecx
	callq	hipMemcpy
	callq	hipDeviceSynchronize
	callq	hipGetLastError
	testl	%eax, %eax
	jne	.LBB1_16
# %bb.10:
	movl	$_ZSt4cout, %edi
	movl	$.L.str.7, %esi
	movl	$36, %edx
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movl	(%rbx), %esi
	movl	$_ZSt4cout, %edi
	callq	_ZNSo9_M_insertImEERSoT_
	movl	$.L.str.4, %esi
	movl	$1, %edx
	movq	%rax, %rdi
	callq	_ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
	movq	24(%rsp), %rdi
	callq	hipFree
	movq	8(%rsp), %rdi
	callq	hipFree
	movq	%r14, %rdi
	callq	free
	movq	%rbx, %rdi
	callq	free
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_def_cfa_offset 56
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%r12
	.cfi_def_cfa_offset 40
	popq	%r13
	.cfi_def_cfa_offset 32
	popq	%r14
	.cfi_def_cfa_offset 24
	popq	%r15
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	retq
.LBB1_11:
	.cfi_def_cfa_offset 96
	movl	$.Lstr.1, %edi
	jmp	.LBB1_13
.LBB1_12:
	movl	$.Lstr.2, %edi
.LBB1_13:
	callq	puts@PLT
	jmp	.LBB1_14
.LBB1_15:
	movl	%eax, %edi
	callq	hipGetErrorString
	movl	$.L.str.5, %edi
	jmp	.LBB1_17
.LBB1_16:
	movl	%eax, %edi
	callq	hipGetErrorString
	movl	$.L.str.6, %edi
.LBB1_17:
	movq	%rax, %rsi
	xorl	%eax, %eax
	callq	printf
.LBB1_14:
	movl	$1, %edi
	callq	exit
.Lfunc_end1:
	.size	main, .Lfunc_end1-main
	.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	.LBB2_2
# %bb.1:
	movl	$__hip_fatbin_wrapper, %edi
	callq	__hipRegisterFatBinary
	movq	%rax, %rdi
	movq	%rax, __hip_gpubin_handle(%rip)
.LBB2_2:
	xorps	%xmm0, %xmm0
	movups	%xmm0, 16(%rsp)
	movups	%xmm0, (%rsp)
	movl	$_Z8getmaxcuPKjPjj, %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_end2:
	.size	__hip_module_ctor, .Lfunc_end2-__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	.LBB3_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
.LBB3_2:
	retq
.Lfunc_end3:
	.size	__hip_module_dtor, .Lfunc_end3-__hip_module_dtor
	.cfi_endproc
                                        # -- End function
	.type	_Z8getmaxcuPKjPjj,@object       # @_Z8getmaxcuPKjPjj
	.section	.rodata,"a",@progbits
	.globl	_Z8getmaxcuPKjPjj
	.p2align	3, 0x0
_Z8getmaxcuPKjPjj:
	.quad	_Z23__device_stub__getmaxcuPKjPjj
	.size	_Z8getmaxcuPKjPjj, 8

	.type	.L.str.2,@object                # @.str.2
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str.2:
	.asciz	"Starting GPU Calculation:\nBlocksize: "
	.size	.L.str.2, 38

	.type	.L.str.3,@object                # @.str.3
.L.str.3:
	.asciz	"\nBlocks in grid: "
	.size	.L.str.3, 18

	.type	.L.str.4,@object                # @.str.4
.L.str.4:
	.asciz	"\n"
	.size	.L.str.4, 2

	.type	.L.str.5,@object                # @.str.5
.L.str.5:
	.asciz	"Err: %s\n"
	.size	.L.str.5, 9

	.type	.L.str.6,@object                # @.str.6
.L.str.6:
	.asciz	"Err Getting Output: %s\n"
	.size	.L.str.6, 24

	.type	.L.str.7,@object                # @.str.7
.L.str.7:
	.asciz	"The maximum number in the array is: "
	.size	.L.str.7, 37

	.type	.L__unnamed_1,@object           # @0
.L__unnamed_1:
	.asciz	"_Z8getmaxcuPKjPjj"
	.size	.L__unnamed_1, 18

	.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

	.type	.Lstr.1,@object                 # @str.1
	.section	.rodata.str1.1,"aMS",@progbits,1
.Lstr.1:
	.asciz	"Failed Allocation"
	.size	.Lstr.1, 18

	.type	.Lstr.2,@object                 # @str.2
.Lstr.2:
	.asciz	"usage: maxseq num\nnum = size of the array"
	.size	.Lstr.2, 42

	.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 _Z23__device_stub__getmaxcuPKjPjj
	.addrsig_sym __hip_module_ctor
	.addrsig_sym __hip_module_dtor
	.addrsig_sym _Z8getmaxcuPKjPjj
	.addrsig_sym _ZSt4cout
	.addrsig_sym __hip_fatbin
	.addrsig_sym __hip_fatbin_wrapper
	.addrsig_sym __hip_cuid_

	.text
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.protected	_Z8getmaxcuPKjPjj       ; -- Begin function _Z8getmaxcuPKjPjj
	.globl	_Z8getmaxcuPKjPjj
	.p2align	8
	.type	_Z8getmaxcuPKjPjj,@function
_Z8getmaxcuPKjPjj:                      ; @_Z8getmaxcuPKjPjj
; %bb.0:
	s_clause 0x1
	s_load_b32 s4, s[0:1], 0x24
	s_load_b128 s[0:3], s[0:1], 0x0
	s_waitcnt lgkmcnt(0)
	s_and_b32 s4, s4, 0xffff
	s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) | instid1(VALU_DEP_1)
	v_mad_u64_u32 v[1:2], null, s15, s4, v[0:1]
	v_mov_b32_e32 v2, 0
	s_cmp_lt_u32 s4, 2
	v_lshlrev_b64 v[1:2], 2, v[1:2]
	s_delay_alu instid0(VALU_DEP_1) | instskip(NEXT) | instid1(VALU_DEP_2)
	v_add_co_u32 v1, vcc_lo, s0, v1
	v_add_co_ci_u32_e32 v2, vcc_lo, s1, v2, vcc_lo
	global_load_b32 v2, v[1:2], off
	v_lshl_add_u32 v1, v0, 2, 0
	s_waitcnt vmcnt(0)
	ds_store_b32 v1, v2
	s_cbranch_scc1 .LBB0_4
.LBB0_1:                                ; %.lr.ph
                                        ; =>This Inner Loop Header: Depth=1
	s_lshr_b32 s0, s4, 1
	s_mov_b32 s1, exec_lo
	v_cmpx_gt_u32_e64 s0, v0
	s_cbranch_execz .LBB0_3
; %bb.2:                                ;   in Loop: Header=BB0_1 Depth=1
	v_lshl_add_u32 v2, s0, 2, v1
	ds_load_b32 v3, v1
	ds_load_b32 v2, v2
	s_waitcnt lgkmcnt(0)
	v_max_u32_e32 v2, v3, v2
	ds_store_b32 v1, v2
.LBB0_3:                                ;   in Loop: Header=BB0_1 Depth=1
	s_or_b32 exec_lo, exec_lo, s1
	s_cmp_lt_u32 s4, 4
	s_mov_b32 s4, s0
	s_waitcnt lgkmcnt(0)
	s_barrier
	buffer_gl0_inv
	s_cbranch_scc0 .LBB0_1
.LBB0_4:                                ; %._crit_edge
	s_mov_b32 s0, exec_lo
	v_cmpx_eq_u32_e32 0, v0
	s_cbranch_execz .LBB0_7
; %bb.5:
	v_mbcnt_lo_u32_b32 v0, exec_lo, 0
	s_delay_alu instid0(VALU_DEP_1)
	v_cmp_eq_u32_e32 vcc_lo, 0, v0
	s_and_b32 exec_lo, exec_lo, vcc_lo
	s_cbranch_execz .LBB0_7
; %bb.6:
	v_mov_b32_e32 v0, 0
	ds_load_b32 v1, v0
	s_waitcnt lgkmcnt(0)
	global_atomic_max_u32 v0, v1, s[2:3]
.LBB0_7:
	s_nop 0
	s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
	s_endpgm
	.section	.rodata,"a",@progbits
	.p2align	6, 0x0
	.amdhsa_kernel _Z8getmaxcuPKjPjj
		.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 4
		.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	_Z8getmaxcuPKjPjj, .Lfunc_end0-_Z8getmaxcuPKjPjj
                                        ; -- End function
	.section	.AMDGPU.csdata,"",@progbits
; Kernel info:
; codeLenInByte = 272
; NumSgprs: 18
; NumVgprs: 4
; ScratchSize: 0
; MemoryBound: 0
; FloatMode: 240
; IeeeMode: 1
; LDSByteSize: 0 bytes/workgroup (compile time only)
; SGPRBlocks: 2
; VGPRBlocks: 0
; NumSGPRsForWavesPerEU: 18
; NumVGPRsForWavesPerEU: 4
; 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
      - .offset:         16
        .size:           4
        .value_kind:     by_value
      - .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
      - .offset:         144
        .size:           4
        .value_kind:     hidden_dynamic_lds_size
    .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:           _Z8getmaxcuPKjPjj
    .private_segment_fixed_size: 0
    .sgpr_count:     18
    .sgpr_spill_count: 0
    .symbol:         _Z8getmaxcuPKjPjj.kd
    .uniform_work_group_size: 1
    .uses_dynamic_stack: false
    .vgpr_count:     4
    .vgpr_spill_count: 0
    .wavefront_size: 32
    .workgroup_processor_mode: 1
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
