static void CL_API_CALL opencl_task_complete(
cl_event ev, cl_int status, void * data) {
EMBB_UNUSED(ev);
EMBB_UNUSED(status);
cl_int err;
EMBB_UNUSED_IN_RELEASE(err);
embb_mtapi_opencl_task_t * opencl_task = (embb_mtapi_opencl_task_t*)data;
if (embb_mtapi_node_is_initialized()) {
embb_mtapi_node_t * node = embb_mtapi_node_get_instance();
if (embb_mtapi_task_pool_is_handle_valid(
node->task_pool, opencl_task->task)) {
embb_mtapi_task_t * local_task =
embb_mtapi_task_pool_get_storage_for_handle(
node->task_pool, opencl_task->task);
err = clWaitForEvents(1, &opencl_task->kernel_finish_event);
assert(CL_SUCCESS == err);
if (NULL != opencl_task->result_buffer) {
err = clReleaseMemObject(opencl_task->result_buffer);
assert(CL_SUCCESS == err);
}
if (NULL != opencl_task->arguments) {
err = clReleaseMemObject(opencl_task->arguments);
assert(CL_SUCCESS == err);
}
embb_mtapi_task_set_state(local_task, MTAPI_TASK_COMPLETED);
}
}
}
static mtapi_boolean_t embb_mtapi_action_disable_visitor(
embb_mtapi_task_t * task,
void * user_data) {
embb_mtapi_action_t * action = (embb_mtapi_action_t*)user_data;
mtapi_boolean_t result = MTAPI_FALSE;
assert(MTAPI_NULL != action);
assert(MTAPI_NULL != task);
if (
task->action.id == action->handle.id &&
task->action.tag == action->handle.tag) {
/* task is scheduled and needs to be cancelled */
embb_mtapi_task_set_state(task, MTAPI_TASK_CANCELLED);
task->error_code = MTAPI_ERR_ACTION_DISABLED;
result = MTAPI_TRUE;
}
return result;
}
static void opencl_task_start(
MTAPI_IN mtapi_task_hndl_t task,
MTAPI_OUT mtapi_status_t* status) {
mtapi_status_t local_status = MTAPI_ERR_UNKNOWN;
cl_int err;
if (embb_mtapi_node_is_initialized()) {
embb_mtapi_node_t * node = embb_mtapi_node_get_instance();
if (embb_mtapi_task_pool_is_handle_valid(node->task_pool, task)) {
embb_mtapi_task_t * local_task =
embb_mtapi_task_pool_get_storage_for_handle(node->task_pool, task);
if (embb_mtapi_action_pool_is_handle_valid(
node->action_pool, local_task->action)) {
embb_mtapi_action_t * local_action =
embb_mtapi_action_pool_get_storage_for_handle(
node->action_pool, local_task->action);
embb_mtapi_opencl_plugin_t * plugin = &embb_mtapi_opencl_plugin;
embb_mtapi_opencl_action_t * opencl_action =
(embb_mtapi_opencl_action_t*)local_action->plugin_data;
embb_mtapi_opencl_task_t * opencl_task =
(embb_mtapi_opencl_task_t*)embb_alloc(
sizeof(embb_mtapi_opencl_task_t));
size_t elements = local_task->result_size /
opencl_action->element_size;
size_t global_work_size;
if (0 == elements)
elements = 1;
global_work_size =
round_up(opencl_action->local_work_size, elements);
opencl_task->task = task;
opencl_task->arguments_size = (int)local_task->arguments_size;
if (0 < local_task->arguments_size) {
opencl_task->arguments = clCreateBuffer(plugin->context,
CL_MEM_READ_ONLY, local_task->arguments_size, NULL, &err);
} else {
opencl_task->arguments = NULL;
}
opencl_task->result_buffer_size = (int)local_task->result_size;
if (0 < local_task->result_size) {
opencl_task->result_buffer = clCreateBuffer(plugin->context,
CL_MEM_WRITE_ONLY, local_task->result_size, NULL, &err);
} else {
opencl_task->result_buffer = NULL;
}
err = clSetKernelArg(opencl_action->kernel, 0, sizeof(cl_mem),
(const void*)&opencl_task->arguments);
err |= clSetKernelArg(opencl_action->kernel, 1, sizeof(cl_int),
(const void*)&opencl_task->arguments_size);
err |= clSetKernelArg(opencl_action->kernel, 2, sizeof(cl_mem),
(const void*)&opencl_task->result_buffer);
err |= clSetKernelArg(opencl_action->kernel, 3, sizeof(cl_int),
(const void*)&opencl_task->result_buffer_size);
err |= clEnqueueWriteBuffer(plugin->command_queue,
opencl_task->arguments, CL_FALSE, 0,
(size_t)opencl_task->arguments_size, local_task->arguments,
0, NULL, NULL);
if (CL_SUCCESS == err) {
embb_mtapi_task_set_state(local_task, MTAPI_TASK_RUNNING);
err |= clEnqueueNDRangeKernel(plugin->command_queue,
opencl_action->kernel, 1, NULL,
&global_work_size, &opencl_action->local_work_size, 0, NULL, NULL);
err |= clEnqueueReadBuffer(plugin->command_queue,
opencl_task->result_buffer, CL_FALSE, 0,
(size_t)opencl_task->result_buffer_size, local_task->result_buffer,
0, NULL, &opencl_task->kernel_finish_event);
err |= clSetEventCallback(opencl_task->kernel_finish_event,
CL_COMPLETE, opencl_task_complete, opencl_task);
}
err |= clFlush(plugin->command_queue);
if (CL_SUCCESS != err) {
embb_mtapi_task_set_state(local_task, MTAPI_TASK_ERROR);
local_status = MTAPI_ERR_ACTION_FAILED;
} else {
local_status = MTAPI_SUCCESS;
}
}
}
}
mtapi_status_set(status, local_status);
}