AthCUDA Namespace Reference

Classes
class	IKernelRunnerSvc
	Interface for executing AthCUDA::IKernelTask tasks. More...
class	IKernelTask
	Abstract interface for setting up / running a CUDA task. More...
class	Info
	Class providing information about the CUDA devices at runtime. More...
class	IStreamPoolSvc
	Interface for a CUDA stream pool service. More...
class	KernelRunnerSvc
	Service used for executing AthCUDA::IKernelTask tasks. More...
class	KernelRunnerSvcImpl
	CUDA implementation of AthCUDA::KernelRunnerSvc. More...
class	KernelRunnerSvcImplCallback
	Class used for calling AthCUDA::KernelRunnerSvc::setTaskFinished. More...
class	KernelStatus
	Helper object used for synchronising GPU kernel tasks. More...
class	StreamHolder
	Helper class for handling CUDA streams. More...
class	StreamPoolSvc
	Service managing a fixed number of CUDA streams for an application. More...
class	StreamPoolSvcImpl
	CUDA implementation of AthCUDA::StreamPoolSvc. More...

Functions
std::ostream &	operator<< (std::ostream &out, const AthCUDA::Info &info)
	Print operator for AthCUDA::Info. More...
tbb::task_arena &	taskArena ()
	Function returning the TBB task arena that should be used for CUDA calls. More...

Function Documentation

operator<<()

std::ostream& AthCUDA::operator<<	(	std::ostream &	out,
		const AthCUDA::Info &	info
	)

Print operator for AthCUDA::Info.

taskArena()

tbb::task_arena & AthCUDA::taskArena

(

)

Function returning the TBB task arena that should be used for CUDA calls.

Since many (most?) CUDA calls use global locks, in order to avoid waiting times in the threads, one needs to schedule all CUDA operations using this single task arena, which takes care of executing all operations one by one. Using the TBB threads allocated for the rest of the job.

Returns

A reference to the tbb::task_arena object to use for CUDA calls.

Definition at line 12 of file TaskArena.cxx.

                              {
 
      static tbb::task_arena arena ATLAS_THREAD_SAFE ( 1, 0 );
      return arena;
   }