32 lines
706 B
Plaintext
32 lines
706 B
Plaintext
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#include <thrust/device_free.h>
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#include <thrust/device_malloc.h>
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#include <thrust/device_ptr.h>
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#include <thrust/device_vector.h>
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#include <cuda.h>
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int main()
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{
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size_t N = 10;
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// create a device_ptr
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thrust::device_ptr<int> dev_ptr = thrust::device_malloc<int>(N);
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// extract raw pointer from device_ptr
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int* raw_ptr = thrust::raw_pointer_cast(dev_ptr);
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// use raw_ptr in CUDA API functions
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cudaMemset(raw_ptr, 0, N * sizeof(int));
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// free memory
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thrust::device_free(dev_ptr);
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// we can use the same approach for device_vector
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thrust::device_vector<int> d_vec(N);
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// note: d_vec.data() returns a device_ptr
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raw_ptr = thrust::raw_pointer_cast(d_vec.data());
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return 0;
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}
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