119 lines
3.4 KiB
C++
Executable File
119 lines
3.4 KiB
C++
Executable File
/* Copyright 2015-2017 Philippe Tillet
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include <cassert>
|
|
#include "triton/driver/context.h"
|
|
#include "triton/driver/module.h"
|
|
#include "triton/tools/sys/getenv.hpp"
|
|
#include "triton/tools/sys/mkdir.hpp"
|
|
|
|
namespace triton
|
|
{
|
|
|
|
namespace driver
|
|
{
|
|
|
|
/* ------------------------ */
|
|
// BASE //
|
|
/* ------------------------ */
|
|
|
|
context::context(driver::device *dev, CUcontext cu, bool take_ownership):
|
|
polymorphic_resource(cu, take_ownership),
|
|
dev_(dev), cache_path_(get_cache_path()) {
|
|
}
|
|
|
|
context::context(driver::device *dev, host_context_t hst, bool take_ownership):
|
|
polymorphic_resource(hst, take_ownership),
|
|
dev_(dev), cache_path_(get_cache_path()){
|
|
}
|
|
|
|
context* context::create(driver::device *dev){
|
|
switch(dev->backend()){
|
|
case CUDA: return new cu_context(dev);
|
|
case Host: return new host_context(dev);
|
|
default: throw std::runtime_error("unknown backend");
|
|
}
|
|
}
|
|
|
|
|
|
driver::device* context::device() const {
|
|
return dev_;
|
|
}
|
|
|
|
std::string context::get_cache_path(){
|
|
//user-specified cache path
|
|
std::string result = tools::getenv("TRITON_CACHE_PATH");
|
|
if(!result.empty()){
|
|
if(tools::mkpath(result)==0)
|
|
return result;
|
|
}
|
|
//create in home
|
|
result = tools::getenv("HOME");
|
|
if(!result.empty())
|
|
{
|
|
result = result + "/.triton/cache/";
|
|
if(tools::mkpath(result)==0)
|
|
return result;
|
|
}
|
|
//couldn't find a directory
|
|
return "";
|
|
}
|
|
|
|
std::string const & context::cache_path() const{
|
|
return cache_path_;
|
|
}
|
|
|
|
/* ------------------------ */
|
|
// Host //
|
|
/* ------------------------ */
|
|
|
|
host_context::host_context(driver::device* dev): context(dev, host_context_t(), true){
|
|
|
|
}
|
|
|
|
/* ------------------------ */
|
|
// CUDA //
|
|
/* ------------------------ */
|
|
|
|
// import CUdevice
|
|
CUdevice cu_context::get_device_of(CUcontext context){
|
|
dispatch::cuCtxPushCurrent_v2(context);
|
|
CUdevice res;
|
|
dispatch::cuCtxGetDevice(&res);
|
|
dispatch::cuCtxPopCurrent_v2(NULL);
|
|
return res;
|
|
}
|
|
|
|
// wrapper for cuda context
|
|
cu_context::cu_context(CUcontext context, bool take_ownership): driver::context(new driver::cu_device(get_device_of(context), false),
|
|
context, take_ownership) {
|
|
}
|
|
|
|
cu_context::cu_context(driver::device* device): context(device, CUcontext(), true){
|
|
dispatch::cuCtxCreate(&*cu_, CU_CTX_SCHED_AUTO, *((driver::cu_device*)dev_)->cu());
|
|
// dispatch::cuCtxPopCurrent_v2(NULL);
|
|
}
|
|
|
|
|
|
}
|
|
}
|