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device.cpp
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190 lines (162 loc) · 4.75 KB
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/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* http://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <af/dim4.hpp>
#include <af/device.h>
#include <backend.hpp>
#include <platform.hpp>
#include <iostream>
#include <Array.hpp>
#include <handle.hpp>
#include <memory.hpp>
#include "err_common.hpp"
using namespace detail;
af_err af_init()
{
try {
static bool first = true;
if(first) {
getInfo();
first = false;
}
} CATCHALL;
return AF_SUCCESS;
}
af_err af_info()
{
std::cout << getInfo();
return AF_SUCCESS;
}
af_err af_deviceprop(char* d_name, char* d_platform, char *d_toolkit, char* d_compute)
{
try {
devprop(d_name, d_platform, d_toolkit, d_compute);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_get_dbl_support(bool* available, const int device)
{
try {
*available = isDoubleSupported(device);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_get_device_count(int *nDevices)
{
try {
*nDevices = getDeviceCount();
} CATCHALL;
return AF_SUCCESS;
}
af_err af_get_device(int *device)
{
try {
*device = getActiveDeviceId();
} CATCHALL;
return AF_SUCCESS;
}
af_err af_set_device(const int device)
{
try {
if (setDevice(device) < 0) {
std::cout << "Invalid Device ID" << std::endl;
return AF_ERR_INVALID_ARG;
}
} CATCHALL;
return AF_SUCCESS;
}
af_err af_sync(const int device)
{
try {
int dev = device == -1 ? getActiveDeviceId() : device;
detail::sync(dev);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_device_array(af_array *arr, const void *data,
const unsigned ndims,
const dim_type * const dims,
const af_dtype type)
{
try {
AF_CHECK(af_init());
af_array res;
af::dim4 d((size_t)dims[0]);
for(unsigned i = 1; i < ndims; i++) {
d[i] = dims[i];
}
switch (type) {
case f32: res = getHandle(createDeviceDataArray<float >(d, data)); break;
case f64: res = getHandle(createDeviceDataArray<double >(d, data)); break;
case c32: res = getHandle(createDeviceDataArray<cfloat >(d, data)); break;
case c64: res = getHandle(createDeviceDataArray<cdouble>(d, data)); break;
case s32: res = getHandle(createDeviceDataArray<int >(d, data)); break;
case u32: res = getHandle(createDeviceDataArray<uint >(d, data)); break;
case u8 : res = getHandle(createDeviceDataArray<uchar >(d, data)); break;
case b8 : res = getHandle(createDeviceDataArray<char >(d, data)); break;
default: TYPE_ERROR(4, type);
}
std::swap(*arr, res);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_get_device_ptr(void **data, const af_array arr, bool read_only)
{
try {
if (!read_only) {
//FIXME: Implement a lock / unlock mechanism
AF_ERROR("Write access to device pointer not yet implemented", AF_ERR_NOT_SUPPORTED);
}
// Make sure all kernels and memcopies are done before getting device pointer
detail::sync(getActiveDeviceId());
af_dtype type = getInfo(arr).getType();
switch (type) {
//FIXME: Perform copy if memory not continuous
case f32: *data = getDevicePtr(getArray<float >(arr)); break;
case f64: *data = getDevicePtr(getArray<double >(arr)); break;
case c32: *data = getDevicePtr(getArray<cfloat >(arr)); break;
case c64: *data = getDevicePtr(getArray<cdouble>(arr)); break;
case s32: *data = getDevicePtr(getArray<int >(arr)); break;
case u32: *data = getDevicePtr(getArray<uint >(arr)); break;
case u8 : *data = getDevicePtr(getArray<uchar >(arr)); break;
case b8 : *data = getDevicePtr(getArray<char >(arr)); break;
default: TYPE_ERROR(4, type);
}
} CATCHALL;
return AF_SUCCESS;
}
af_err af_alloc_device(void **ptr, dim_type bytes)
{
try {
AF_CHECK(af_init());
*ptr = (void *)memAlloc<char>(bytes);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_alloc_pinned(void **ptr, dim_type bytes)
{
try {
AF_CHECK(af_init());
*ptr = (void *)pinnedAlloc<char>(bytes);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_free_device(void *ptr)
{
try {
memFree<char>((char *)ptr);
} CATCHALL;
return AF_SUCCESS;
}
af_err af_free_pinned(void *ptr)
{
try {
pinnedFree<char>((char *)ptr);
} CATCHALL;
return AF_SUCCESS;
}