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goicicle.go
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/
goicicle.go
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package goicicle
// This file implements CUDA driver context management
// #cgo CFLAGS: -I /usr/loca/cuda/include
// #cgo LDFLAGS: -L/usr/local/cuda/lib64 -lcudart
/*
#include <cuda.h>
#include <cuda_runtime.h>
*/
import "C"
import (
"errors"
"unsafe"
)
func CudaMalloc(size int) (dp unsafe.Pointer, err error) {
var p C.void
dp = unsafe.Pointer(&p)
if err := C.cudaMalloc(&dp, C.size_t(size)); err != 0 {
return nil, errors.New("could not create memory space")
}
return dp, nil
}
func CudaFree(dp unsafe.Pointer) int {
if err := C.cudaFree(dp); err != 0 {
return -1
}
return 0
}
func CudaMemCpyHtoD[T any](dst_d unsafe.Pointer, src []T, size int) int {
src_c := unsafe.Pointer(&src[0])
if err := C.cudaMemcpy(dst_d, src_c, C.size_t(size), 1); err != 0 {
return -1
}
return 0
}
func CudaMemCpyDtoH[T any](dst []T, src_d unsafe.Pointer, size int) int {
dst_c := unsafe.Pointer(&dst[0])
if err := C.cudaMemcpy(dst_c, src_d, C.size_t(size), 2); err != 0 {
return -1
}
return 0
}