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

/*
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/* HIT_START
 * BUILD_CMD: matmul.code %hc --genco %S/matmul.cpp -o matmul.code EXCLUDE_HIP_PLATFORM nvcc
 * BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM nvcc
 * 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"

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;
    HIPCHECK(hipStreamCreate(&stream1));
    HIPCHECK(hipMalloc((void**)&Ad, SIZE*sizeof(int)));
    HIPCHECK(hipMalloc((void**)&Bd, SIZE*sizeof(int)));
    HIPCHECK(hipHostMalloc((void**)&C, SIZE*sizeof(int)));
    HIPCHECK(hipMemcpy(Ad,A,SIZE*sizeof(int),hipMemcpyHostToDevice));
    HIPCHECK(hipMemcpy(Bd,B,SIZE*sizeof(int),hipMemcpyHostToDevice));

    hipModule_t Module;
    hipFunction_t Function1,Function2;
    HIPCHECK(hipModuleLoad(&Module, fileName));
    HIPCHECK(hipModuleGetFunction(&Function1, Module, kernel_name1))
    HIPCHECK(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();
    HIPCHECK(hipExtModuleLaunchKernel(Function2, 1,1, 1, 1,1 ,1 , 0, stream1, NULL, (void**)&config2, NULL, NULL,0 ));
    HIPCHECK(hipExtModuleLaunchKernel(Function1, N,N, 1, 32,32 ,1 , 0, stream1, NULL, (void**)&config1, NULL, NULL,0 ));
    HIPCHECK(hipStreamSynchronize(stream1));

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

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

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

    bool testStatus = 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;
        testStatus = 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) {
        std::cout<<"Test failed as the result of matrix multiplication was found incorrect."<<std::endl;
        testStatus = false; 
    }

    delete[] A;
    delete[] B; 
    HIPCHECK(hipFree(Ad));
    HIPCHECK(hipFree(Bd));
    HIPCHECK(hipHostFree(C));
    if(testStatus)
        passed();
}