owl::DeviceContext Struct Reference

#include <DeviceContext.h>

Inheritance diagram for owl::DeviceContext:

Public Types
typedef std::shared_ptr< DeviceContext >	SP

Public Member Functions
	DeviceContext (Context *parent, int owlID, int cudaID)
std::string	getDeviceName () const
int	getCudaDeviceID () const
CUstream	getStream () const
void	configurePipelineOptions (bool debug=false)
void	buildPrograms ()
void	buildMissPrograms ()
void	buildRayGenPrograms ()
void	buildHitGroupPrograms ()
void	destroyPrograms ()
void	destroyMissPrograms ()
void	destroyRayGenPrograms ()
void	destroyHitGroupPrograms ()
void	destroyPipeline ()
void	buildPipeline ()
void	buildCurvesModules ()
void	buildSphereModule ()

Public Attributes
std::vector< OptixProgramGroup >	allActivePrograms
OptixDeviceContext	optixContext = nullptr
CUcontext	cudaContext = nullptr
CUstream	stream = nullptr
OptixPipelineCompileOptions	pipelineCompileOptions = {}
OptixPipelineLinkOptions	pipelineLinkOptions = {}
OptixModuleCompileOptions	moduleCompileOptions = {}
OptixPipeline	pipeline = nullptr
SBT	sbt = {}
OptixModule	curvesModule [2][3]
OptixModule	spheresModule = nullptr
Context *const	parent
const int	ID
const int	cudaDeviceID

Detailed Description

optix and cuda context for a single, specific GPU

Constructor & Destructor Documentation

DeviceContext()

owl::DeviceContext::DeviceContext	(	Context *	parent,
		int	owlID,
		int	cudaID
	)

create a new device context with given context object, using given GPU "cudaID", and serving the rols at the "owlID"th GPU in that context

Member Function Documentation

buildMissPrograms()

void owl::DeviceContext::buildMissPrograms

(

)

build all optix progrmas for miss program types

configurePipelineOptions()

void owl::DeviceContext::configurePipelineOptions

(

bool

debug = false

)

configures the optixPipeline link options and compile options, based on what values (motion blur on/off, multi-level instnacing, etc) are set in the context

getCudaDeviceID()

int owl::DeviceContext::getCudaDeviceID

(

)

const

helper function - return cuda device ID of this device

getDeviceName()

std::string owl::DeviceContext::getDeviceName

(

)

const

helper function - return cuda name of this device

return CUDA's name string for given device

getStream()

CUstream owl::DeviceContext::getStream ( ) const

inline

return the optix default stream for this device. launch params may use their own stream

Member Data Documentation

allActivePrograms

std::vector<OptixProgramGroup> owl::DeviceContext::allActivePrograms

collects all compiled programs during 'buildPrograms', such that all active progs can then be passed to optix durign pipeline creation

curvesModule

OptixModule owl::DeviceContext::curvesModule[2][3]

Initial value:

= {
       { nullptr, nullptr, nullptr },
       { nullptr, nullptr, nullptr }
    }

optix builtin modules for curves of degree 1, 2, and 3; only get loaded once the user calls owlEnableCurves()

ID

const int owl::DeviceContext::ID

linear ID (0,1,2,...) of how we number devices (i.e., 'first' device is always device 0, no matter if it runs on another physical/cuda device)

parent

Context* const owl::DeviceContext::parent

the owl context that this device is in

spheresModule

OptixModule owl::DeviceContext::spheresModule = nullptr

optix builtin module for spheres

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The documentation for this struct was generated from the following files:

• owl/DeviceContext.h
• owl/DeviceContext.cpp