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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@7275 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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This commit is contained in:
sjplimp
2011-12-02 15:51:43 +00:00
parent a55728fa74
commit 37f098062b
17 changed files with 547 additions and 589 deletions
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31
lib/gpu/geryon/ocl_device.h
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@ -82,8 +82,10 @@ class UCL_Device {
inline int num_devices() { return _num_devices; }
/// Set the OpenCL device to the specified device number
/** A context and default command queue will be created for the device **/
void set(int num);
/** A context and default command queue will be created for the device *
* Returns UCL_SUCCESS if successful or UCL_ERROR if the device could not
* be allocated for use **/
int set(int num);
/// Get the current device number
inline int device_num() { return _device; }
@ -200,6 +202,14 @@ class UCL_Device {
/// Return the maximum memory pitch in bytes
inline size_t max_pitch(const int i) { return 0; }
/// Returns false if accelerator cannot be shared by multiple processes
/** If it cannot be determined, true is returned **/
inline bool sharing_supported() { return sharing_supported(_device); }
/// Returns false if accelerator cannot be shared by multiple processes
/** If it cannot be determined, true is returned **/
inline bool sharing_supported(const int i)
{ return true; }
/// List all devices along with all properties
void print_all(std::ostream &out);
@ -219,7 +229,7 @@ class UCL_Device {
std::vector<OCLProperties> _properties; // Properties for each device
void add_properties(cl_device_id);
void create_context();
int create_context();
};
@ -272,7 +282,7 @@ inline UCL_Device::~UCL_Device() {
}
}
inline void UCL_Device::create_context() {
inline int UCL_Device::create_context() {
cl_int errorv;
cl_context_properties props[3];
props[0]=CL_CONTEXT_PLATFORM;
@ -280,10 +290,15 @@ inline void UCL_Device::create_context() {
props[2]=0;
_context=clCreateContext(0,1,&_cl_device,NULL,NULL,&errorv);
if (errorv!=CL_SUCCESS) {
std::cerr << "Could not create context on device: " << name() << std::endl;
#ifndef UCL_NO_EXIT
std::cerr << "UCL Error: Could not access accelerator number " << _device
<< " for use.\n";
exit(1);
#endif
return UCL_ERROR;
}
push_command_queue();
return UCL_SUCCESS;
}
inline void UCL_Device::add_properties(cl_device_id device_list) {
@ -375,9 +390,9 @@ inline int UCL_Device::device_type(const int i) {
}
// Set the CUDA device to the specified device number
inline void UCL_Device::set(int num) {
inline int UCL_Device::set(int num) {
if (_device==num)
return;
return UCL_SUCCESS;
if (_device>-1) {
for (size_t i=0; i<_cq.size(); i++) {
@ -394,7 +409,7 @@ inline void UCL_Device::set(int num) {
_device=num;
_cl_device=device_list[_device];
create_context();
return create_context();
}
// List all devices along with all properties