43 lignes
1.1 KiB
C++
43 lignes
1.1 KiB
C++
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#include<iostream>
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#include<hip/hip_runtime.h>
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#include<hip/hip_runtime_api.h>
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#define LEN 1030
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#define SIZE LEN << 2
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__global__ void cpy(hipLaunchParm lp, uint32_t *Out, uint32_t *In, uint32_t *Vald)
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{
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memcpy(Out, In, SIZE, Vald);
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}
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__global__ void set(hipLaunchParm lp, uint32_t *ptr, uint8_t val, size_t size)
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{
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memset(ptr, val, size);
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}
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int main()
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{
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uint32_t *A, *Ad, *B, *Bd;
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uint32_t *Val, *Vald;
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A = new uint32_t[LEN];
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B = new uint32_t[LEN];
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Val = new uint32_t;
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*Val = 0;
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for(int i=0;i<LEN;i++){
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A[i] = i *1.0f;
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B[i] = 0.0f;
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}
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hipMalloc((void**)&Ad, SIZE);
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hipMalloc((void**)&Bd, SIZE);
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hipMalloc((void**)&Vald, sizeof(uint32_t));
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hipMemcpy(Ad, A, SIZE, hipMemcpyHostToDevice);
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hipLaunchKernel(cpy, dim3(1), dim3(LEN/4), 0, 0, Bd, Ad, Vald);
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hipLaunchKernel(set, dim3(1), dim3(LEN/4), 0, 0, Bd, 0x1, SIZE);
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hipMemcpy(B, Bd, SIZE, hipMemcpyDeviceToHost);
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hipMemcpy(Val, Vald, sizeof(uint32_t), hipMemcpyDeviceToHost);
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for(int i=LEN-16;i<LEN;i++){
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std::cout<<A[i]<<" "<<B[i]<<std::endl;
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}
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std::cout<<*Val<<std::endl;
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}
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