rocm-systems/projects/hip/tests/src/runtimeApi/module/hipExtModuleLaunchKernel.cpp

/*
Copyright (c) 2019-Present Advanced Micro Devices, Inc. All rights reserved.
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IMPLIED, INNCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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THE SOFTWARE.
*/

/* HIT_START
 * BUILD_CMD: matmul.code %hc --genco %S/matmul.cpp -o matmul.code
 * BUILD: %t %s ../../test_common.cpp
 * TEST: %t
 * HIT_END
 */

#include<chrono>
#include "hip/hip_runtime.h"
#include "hip/hip_hcc.h"
#include "test_common.h"
using namespace std::chrono;

#define fileName "matmul.code"
#define kernel_name1 "matmulK"
#define kernel_name2 "WaitKernel"

//hipDeviceReset() call is used to clear all the allocations in case of any api failure.
#define HIP_CHECK(status)     \
   if (status != hipSuccess) {   \
   std::cout << "Got Status: " << hipGetErrorString(status) << " at Line: " << __LINE__ << std::endl; \
	   hipDeviceReset(); \
   exit(0);  \
      }

int main()
{
	
int N=16384;
int SIZE=N*N;

int *A=new int[N*N*sizeof(int)];
int *B=new int[N*N*sizeof(int)];
int *C;

hipDeviceptr_t *Ad,*Bd;

for(int i=0;i<N;i++)
	for(int j=0;j<N;j++){
		A[i*N +j]=1;
		B[i*N +j]=1;
	}
hipStream_t stream1,stream2;
HIP_CHECK(hipStreamCreate(&stream1));

HIP_CHECK(hipMalloc((void**)&Ad, SIZE*sizeof(int)));
HIP_CHECK(hipMalloc((void**)&Bd, SIZE*sizeof(int)));
HIP_CHECK(hipHostMalloc((void**)&C, SIZE*sizeof(int)));

HIP_CHECK(hipMemcpy(Ad,A,SIZE*sizeof(int),hipMemcpyHostToDevice));
HIP_CHECK(hipMemcpy(Bd,B,SIZE*sizeof(int),hipMemcpyHostToDevice));

hipModule_t Module;
hipFunction_t Function1,Function2;
HIP_CHECK(hipModuleLoad(&Module, fileName));
HIP_CHECK(hipModuleGetFunction(&Function1, Module, kernel_name1))
HIP_CHECK(hipModuleGetFunction(&Function2, Module, kernel_name2))

struct {
        void* _Ad;
        void* _Bd;
	void* _Cd;
	int _n;
       } args1,args2;

args1._Ad = Ad;
args1._Bd = Bd;
args1._Cd = C;
args1._n  = N;

args2._Ad = NULL;
args2._Bd = NULL;
args2._Cd = NULL;
args2._n  = 0; 

size_t size1=sizeof(args1);
size_t size2=sizeof(args2);
void* config1[] = {HIP_LAUNCH_PARAM_BUFFER_POINTER, &args1, HIP_LAUNCH_PARAM_BUFFER_SIZE, &size1,HIP_LAUNCH_PARAM_END};
void* config2[] = {HIP_LAUNCH_PARAM_BUFFER_POINTER, &args2, HIP_LAUNCH_PARAM_BUFFER_SIZE, &size2,HIP_LAUNCH_PARAM_END};

auto start=high_resolution_clock::now();
HIP_CHECK(hipExtModuleLaunchKernel(Function2, 1,1, 1, 1,1 ,1 , 0, stream1, NULL, (void**)&config2, NULL, NULL,0 ));
HIP_CHECK(hipExtModuleLaunchKernel(Function1, N,N, 1, 32,32 ,1 , 0, stream1, NULL, (void**)&config1, NULL, NULL,0 ));
HIP_CHECK(hipStreamSynchronize(stream1));

auto stop=high_resolution_clock::now();
auto duration1=duration_cast<microseconds>(stop-start);

start=high_resolution_clock::now();
HIP_CHECK(hipExtModuleLaunchKernel(Function2, 1,1, 1, 1,1 ,1 , 0, stream1, NULL, (void**)&config2, NULL, NULL,1 ));
HIP_CHECK(hipExtModuleLaunchKernel(Function1, N,N, 1, 32,32 ,1 , 0, stream1, NULL, (void**)&config1, NULL, NULL,1 ));
HIP_CHECK(hipStreamSynchronize(stream1));

stop=high_resolution_clock::now();
auto duration2=duration_cast<microseconds>(stop-start);

bool TEST_STATUS = true;

if(! (duration2.count() < duration1.count())){
	std::cout<<"Test failed as there was no time gain observed when two kernels were launched using hipExtModuleLaunchKernel() with flag 1."<<std::endl;
	TEST_STATUS=false;}

unsigned long int mismatch=0;
for(int i=0;i<N;i++){
	for(int j=0;j<N;j++){
		if(C[i*N + j] != N)
			mismatch++;
	}}
if(! (mismatch == 0)){
	std::cout<<"Test failed as the result of matrix multiplication was found incorrect."<<std::endl;
	TEST_STATUS=false;}

free(A);
free(B);
HIP_CHECK(hipFree(Ad));
HIP_CHECK(hipFree(Bd));
HIP_CHECK(hipHostFree(C));
if(TEST_STATUS == true)
passed();
}