astaroth.cc File Reference

#include "astaroth.h"
#include "errchk.h"
#include "math_utils.h"

Include dependency graph for astaroth.cc:

Functions
AcResult	acInit (const AcMeshInfo mesh_info)
AcResult	acQuit (void)
AcResult	acCheckDeviceAvailability (void)
AcResult	acSynchronize (void)
AcResult	acSynchronizeStream (const Stream stream)
AcResult	acLoadDeviceConstant (const AcRealParam param, const AcReal value)
AcResult	acLoad (const AcMesh host_mesh)
AcResult	acStore (AcMesh *host_mesh)
AcResult	acIntegrate (const AcReal dt)
AcResult	acIntegrateStep (const int isubstep, const AcReal dt)
AcResult	acIntegrateStepWithOffset (const int isubstep, const AcReal dt, const int3 start, const int3 end)
AcResult	acBoundcondStep (void)
AcReal	acReduceScal (const ReductionType rtype, const VertexBufferHandle vtxbuf_handle)
AcReal	acReduceVec (const ReductionType rtype, const VertexBufferHandle a, const VertexBufferHandle b, const VertexBufferHandle c)
AcResult	acStoreWithOffset (const int3 dst, const size_t num_vertices, AcMesh *host_mesh)
AcResult	acLoadWithOffset (const AcMesh host_mesh, const int3 src, const int num_vertices)
AcResult	acSynchronizeMesh (void)
int	acGetNumDevicesPerNode (void)
Node	acGetNode (void)

Function Documentation

acBoundcondStep()

AcResult acBoundcondStep

(

void

)

Applies periodic boundary conditions for the Mesh distributed among the devices visible to the caller

acCheckDeviceAvailability()

AcResult acCheckDeviceAvailability

(

void

)

Checks whether there are any CUDA devices available. Returns AC_SUCCESS if there is 1 or more, AC_FAILURE otherwise.

acGetNode()

Node acGetNode

(

void

)

acGetNumDevicesPerNode()

int acGetNumDevicesPerNode

(

void

)

acInit()

AcResult acInit

(

const AcMeshInfo

mesh_info

)

Allocates all memory and initializes the devices visible to the caller. Should be called before any other function in this interface.

acIntegrate()

AcResult acIntegrate

(

const AcReal

dt

)

Performs Runge-Kutta 3 integration. Note: Boundary conditions are not applied after the final substep and the user is responsible for calling acBoundcondStep before reading the data.

acIntegrateStep()

AcResult acIntegrateStep	(	const int	isubstep,
		const AcReal	dt
	)

Will potentially be deprecated in later versions. Added only to fix backwards compatibility with PC for now.

acIntegrateStepWithOffset()

AcResult acIntegrateStepWithOffset	(	const int	isubstep,
		const AcReal	dt,
		const int3	start,
		const int3	end
	)

acLoad()

AcResult acLoad

(

const AcMesh

host_mesh

)

Loads an AcMesh to the devices visible to the caller

acLoadDeviceConstant()

AcResult acLoadDeviceConstant	(	const AcRealParam	param,
		const AcReal	value
	)

Loads a constant to the memories of the devices visible to the caller

acLoadWithOffset()

AcResult acLoadWithOffset	(	const AcMesh	host_mesh,
		const int3	src,
		const int	num_vertices
	)

acQuit()

AcResult acQuit

(

void

)

Frees all GPU allocations and resets all devices in the node. Should be called at exit.

acReduceScal()

AcReal acReduceScal	(	const ReductionType	rtype,
		const VertexBufferHandle	vtxbuf_handle
	)

Does a scalar reduction with the data stored in some vertex buffer

acReduceVec()

AcReal acReduceVec	(	const ReductionType	rtype,
		const VertexBufferHandle	a,
		const VertexBufferHandle	b,
		const VertexBufferHandle	c
	)

Does a vector reduction with vertex buffers where the vector components are (a, b, c)

acStore()

AcResult acStore

(

AcMesh *

host_mesh

)

Stores the AcMesh distributed among the devices visible to the caller back to the host

acStoreWithOffset()

AcResult acStoreWithOffset	(	const int3	dst,
		const size_t	num_vertices,
		AcMesh *	host_mesh
	)

Stores a subset of the mesh stored across the devices visible to the caller back to host memory.

acSynchronize()

AcResult acSynchronize

(

void

)

acSynchronizeMesh()

AcResult acSynchronizeMesh

(

void

)

acSynchronizeStream()

AcResult acSynchronizeStream

(

const Stream

stream

)

Synchronizes a specific stream. All streams are synchronized if STREAM_ALL is passed as a parameter