Esempio n. 1
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func MemCpy(dst, src unsafe.Pointer, bytes int64) {
	Sync()
	timer.Start("memcpy")
	cu.MemcpyAsync(cu.DevicePtr(uintptr(dst)), cu.DevicePtr(uintptr(src)), bytes, stream0)
	Sync()
	timer.Stop("memcpy")
}
Esempio n. 2
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func MemCpyHtoD(dst, src unsafe.Pointer, bytes int64) {
	Sync() // sync previous kernels
	timer.Start("memcpyHtoD")
	cu.MemcpyHtoD(cu.DevicePtr(uintptr(dst)), src, bytes)
	Sync() // sync copy
	timer.Stop("memcpyHtoD")
}
Esempio n. 3
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func MemCpyDtoH(dst, src unsafe.Pointer, bytes int64) {
	Sync() // sync previous kernels
	timer.Start("memcpyDtoH")
	cu.MemcpyDtoH(dst, cu.DevicePtr(uintptr(src)), bytes)
	Sync() // sync copy
	timer.Stop("memcpyDtoH")
}
Esempio n. 4
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func newSlice(nComp int, size [3]int, alloc func(int64) unsafe.Pointer, memType int8) *data.Slice {
	data.EnableGPU(memFree, cu.MemFreeHost, MemCpy, MemCpyDtoH, MemCpyHtoD)
	length := prod(size)
	bytes := int64(length) * cu.SIZEOF_FLOAT32
	ptrs := make([]unsafe.Pointer, nComp)
	for c := range ptrs {
		ptrs[c] = unsafe.Pointer(alloc(bytes))
		cu.MemsetD32(cu.DevicePtr(uintptr(ptrs[c])), 0, int64(length))
	}
	return data.SliceFromPtrs(size, memType, ptrs)
}
Esempio n. 5
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// Memset sets the Slice's components to the specified values.
// To be carefully used on unified slice (need sync)
func Memset(s *data.Slice, val ...float32) {
	if Synchronous { // debug
		Sync()
		timer.Start("memset")
	}
	util.Argument(len(val) == s.NComp())
	for c, v := range val {
		cu.MemsetD32Async(cu.DevicePtr(uintptr(s.DevPtr(c))), math.Float32bits(v), int64(s.Len()), stream0)
	}
	if Synchronous { //debug
		Sync()
		timer.Stop("memset")
	}
}
Esempio n. 6
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func memFree(ptr unsafe.Pointer) { cu.MemFree(cu.DevicePtr(uintptr(ptr))) }