#include <random>
#include <cuda.h>
#include <stdio.h>
#include <curand.h>
#include <time.h>

int main()
{
    
    curandGenerator_t gen;
    // default (WOWXOR) or Mersenne-Trister pseudo random number generator
    curandCreateGenerator(&gen, CURAND_RNG_PSEUDO_DEFAULT); 
    // curandCreateGenerator(&gen, CURAND_RNG_PSEUDO_MT19937); 

    // initialize the PRNG with seed
    // std::random_device rd;
    // unsigned int seed = rd();
    unsigned int seed = time(0);
    printf("seed = %u\n", seed);
    curandSetPseudoRandomGeneratorSeed(gen, seed);

    float *hostData, *devData;
    int   n=1<<24;
    size_t memSize=sizeof(float)*n;
    // host and device memory allocation
    hostData = (float *)malloc(memSize);
    cudaMalloc(&devData, memSize);

    // generate n random numbers in (0,1] on the device array 
    curandGenerateUniform(gen, devData, n);

    cudaMemcpy(hostData, devData, memSize, cudaMemcpyDeviceToHost);

    for(int i=0; i<10; i++) printf("%d %e\n", i, hostData[i]);

    curandDestroyGenerator(gen);
    cudaFree(devData); free(hostData);
}


	.file	"tmpxft_0039448d_00000000-6_rngHost.cudafe1.cpp"
	.text
#APP

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB4111:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE4111:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"seed = %u\n"
.LC1:
	.string	"%d %e\n"
	.section	.text.startup,"ax",@progbits
	.globl	main
	.type	main, @function
main:
.LFB4108:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	movl	$100, %esi
	leaq	.LC1(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	xorl	%ebp, %ebp
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	subq	$32, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rdi
	call	curandCreateGenerator@PLT
	xorl	%edi, %edi
	call	time@PLT
	leaq	.LC0(%rip), %rsi
	movl	$2, %edi
	movl	%eax, %edx
	movq	%rax, %rbx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	8(%rsp), %rdi
	movl	%ebx, %esi
	call	curandSetPseudoRandomGeneratorSeed@PLT
	movl	$67108864, %edi
	call	malloc@PLT
	leaq	16(%rsp), %rdi
	movl	$67108864, %esi
	movq	%rax, %rbx
	call	cudaMalloc@PLT
	movq	16(%rsp), %rsi
	movq	8(%rsp), %rdi
	movl	$16777216, %edx
	call	curandGenerateUniform@PLT
	movq	16(%rsp), %rsi
	movl	$2, %ecx
	movq	%rbx, %rdi
	movl	$67108864, %edx
	call	cudaMemcpy@PLT
.L3:
	movl	%ebp, %edx
	cvtss2sd	(%rbx,%rbp,4), %xmm0
	movq	%r12, %rsi
	movb	$1, %al
	movl	$2, %edi
	incq	%rbp
	call	__printf_chk@PLT
	cmpq	$10, %rbp
	jne	.L3
	movq	8(%rsp), %rdi
	call	curandDestroyGenerator@PLT
	movq	16(%rsp), %rdi
	call	cudaFree@PLT
	movq	%rbx, %rdi
	call	free@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	addq	$32, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE4108:
	.size	main, .-main
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB4134:
	.cfi_startproc
	endbr64
	pushq	%rax
	.cfi_def_cfa_offset 16
	leaq	_ZL15__fatDeviceText(%rip), %rdi
	call	__cudaRegisterFatBinary@PLT
	movq	%rax, %rdi
	movq	%rax, _ZL20__cudaFatCubinHandle(%rip)
	call	__cudaRegisterFatBinaryEnd@PLT
	leaq	_ZL26__cudaUnregisterBinaryUtilv(%rip), %rdi
	popq	%rdx
	.cfi_def_cfa_offset 8
	jmp	atexit@PLT
	.cfi_endproc
.LFE4134:
	.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 <random>
#include <hip/hip_runtime.h>
#include <stdio.h>
#include <hiprand/hiprand.h>
#include <time.h>

int main()
{
    
    hiprandGenerator_t gen;
    // default (WOWXOR) or Mersenne-Trister pseudo random number generator
    hiprandCreateGenerator(&gen, HIPRAND_RNG_PSEUDO_DEFAULT); 
    // curandCreateGenerator(&gen, CURAND_RNG_PSEUDO_MT19937); 

    // initialize the PRNG with seed
    // std::random_device rd;
    // unsigned int seed = rd();
    unsigned int seed = time(0);
    printf("seed = %u\n", seed);
    hiprandSetPseudoRandomGeneratorSeed(gen, seed);

    float *hostData, *devData;
    int   n=1<<24;
    size_t memSize=sizeof(float)*n;
    // host and device memory allocation
    hostData = (float *)malloc(memSize);
    hipMalloc(&devData, memSize);

    // generate n random numbers in (0,1] on the device array 
    hiprandGenerateUniform(gen, devData, n);

    hipMemcpy(hostData, devData, memSize, hipMemcpyDeviceToHost);

    for(int i=0; i<10; i++) printf("%d %e\n", i, hostData[i]);

    hiprandDestroyGenerator(gen);
    hipFree(devData); free(hostData);
}


	.text
	.file	"rngHost.hip"
	.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	%r12
	.cfi_def_cfa_offset 32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	.cfi_offset %rbx, -40
	.cfi_offset %r12, -32
	.cfi_offset %r14, -24
	.cfi_offset %r15, -16
	leaq	16(%rsp), %r15
	movq	%r15, %rdi
	movl	$400, %esi                      # imm = 0x190
	callq	hiprandCreateGenerator
	xorl	%ebx, %ebx
	xorl	%edi, %edi
	callq	time
	movq	%rax, %r14
	movl	$.L.str, %edi
	movl	%r14d, %esi
	xorl	%eax, %eax
	callq	printf
	movq	(%r15), %rdi
	movl	%r14d, %esi
	callq	hiprandSetPseudoRandomGeneratorSeed
	movl	$67108864, %edi                 # imm = 0x4000000
	callq	malloc
	movq	%rax, %r14
	leaq	8(%rsp), %r12
	movl	$67108864, %esi                 # imm = 0x4000000
	movq	%r12, %rdi
	callq	hipMalloc
	movq	(%r15), %rdi
	movq	(%r12), %rsi
	movl	$16777216, %edx                 # imm = 0x1000000
	callq	hiprandGenerateUniform
	movq	(%r12), %rsi
	movl	$67108864, %edx                 # imm = 0x4000000
	movq	%r14, %rdi
	movl	$2, %ecx
	callq	hipMemcpy
.LBB0_1:                                # =>This Inner Loop Header: Depth=1
	xorps	%xmm0, %xmm0
	cvtss2sd	(%r14,%rbx,4), %xmm0
	movl	$.L.str.1, %edi
	movl	%ebx, %esi
	movb	$1, %al
	callq	printf
	incq	%rbx
	cmpq	$10, %rbx
	jne	.LBB0_1
# %bb.2:
	movq	16(%rsp), %rdi
	callq	hiprandDestroyGenerator
	movq	8(%rsp), %rdi
	callq	hipFree
	movq	%r14, %rdi
	callq	free
	xorl	%eax, %eax
	addq	$24, %rsp
	.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
.Lfunc_end0:
	.size	main, .Lfunc_end0-main
	.cfi_endproc
                                        # -- End function
	.type	.L.str,@object                  # @.str
	.section	.rodata.str1.1,"aMS",@progbits,1
.L.str:
	.asciz	"seed = %u\n"
	.size	.L.str, 11

	.type	.L.str.1,@object                # @.str.1
.L.str.1:
	.asciz	"%d %e\n"
	.size	.L.str.1, 7

	.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 __hip_cuid_

	.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_
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.amdgpu_metadata
---
amdhsa.kernels:  []
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
