#include <unistd.h>
#include <assert.h>
#include <quda_internal.h>
#include <comm_quda.h>

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Classes
struct	Topology_s

Functions
static int	index (int ndim, const int dims, const int x)

static bool	advance_coords (int ndim, const int dims, int x)

char *	comm_hostname (void)

double	comm_drand (void)

Topology *	comm_create_topology (int ndim, const int dims, QudaCommsMap rank_from_coords, void map_data)

void	comm_destroy_topology (Topology *topo)

void	comm_peer2peer_init (const char *hostname_recv_buf)

bool	comm_peer2peer_enabled (int dir, int dim)

int	comm_peer2peer_enabled_global ()

void	comm_enable_peer2peer (bool enable)
	Enable / disable peer-to-peer communication: used for dslash policies that do not presently support peer-to-peer communication. More...

bool	comm_intranode_enabled (int dir, int dim)

void	comm_enable_intranode (bool enable)
	Enable / disable intra-node (non-peer-to-peer) communication. More...

int	comm_ndim (const Topology *topo)

const int *	comm_dims (const Topology *topo)

const int *	comm_coords (const Topology *topo)

const int *	comm_coords_from_rank (const Topology *topo, int rank)

int	comm_rank_from_coords (const Topology topo, const int coords)

static int	mod (int a, int b)

int	comm_rank_displaced (const Topology *topo, const int displacement[])

void	comm_set_default_topology (Topology *topo)

Topology *	comm_default_topology (void)

void	comm_set_neighbor_ranks (Topology *topo)

int	comm_neighbor_rank (int dir, int dim)

int	comm_dim (int dim)

int	comm_coord (int dim)

MsgHandle *	comm_declare_send_relative_ (const char func, const char file, int line, void *buffer, int dim, int dir, size_t nbytes)

MsgHandle *	comm_declare_receive_relative_ (const char func, const char file, int line, void *buffer, int dim, int dir, size_t nbytes)

MsgHandle *	comm_declare_strided_send_relative_ (const char func, const char file, int line, void *buffer, int dim, int dir, size_t blksize, int nblocks, size_t stride)

MsgHandle *	comm_declare_strided_receive_relative_ (const char func, const char file, int line, void *buffer, int dim, int dir, size_t blksize, int nblocks, size_t stride)

void	comm_finalize (void)

void	comm_dim_partitioned_set (int dim)

void	comm_dim_partitioned_reset ()

int	comm_dim_partitioned (int dim)

int	comm_partitioned ()
	Loop over comm_dim_partitioned(dim) for all comms dimensions. More...

bool	comm_gdr_enabled ()
	Query if GPU Direct RDMA communication is enabled (global setting) More...

bool	comm_gdr_blacklist ()
	Query if GPU Direct RDMA communication is blacklisted for this GPU. More...

void	reduceMaxDouble (double &max)

void	reduceDouble (double &sum)

void	reduceDoubleArray (double *sum, const int len)

int	commDim (int dir)

int	commCoords (int dir)

int	commDimPartitioned (int dir)

void	commDimPartitionedSet (int dir)

void	commDimPartitionedReset ()
	Reset the comm dim partioned array to zero,. More...

bool	commGlobalReduction ()

void	commGlobalReductionSet (bool global_reduction)

bool	commAsyncReduction ()

void	commAsyncReductionSet (bool async_reduction)

Variables
static unsigned long int	rand_seed = 137

static bool	peer2peer_enabled [2][4]

static bool	peer2peer_init = false

static bool	intranode_enabled [2][4]

static int	enable_peer_to_peer = 3

static bool	enable_p2p = true

static bool	enable_intranode = true

Topology *	default_topo = NULL

static int	neighbor_rank [2][4]

static bool	neighbors_cached = false

static int	manual_set_partition [QUDA_MAX_DIM] = {0}

static bool	globalReduce = true

static bool	asyncReduce = false

Function Documentation

◆ advance_coords()

static bool advance_coords	(	int	ndim,
		const int *	dims,
		int *	x
	)

inlinestatic

Definition at line 42 of file comm_common.cpp.

References fused_exterior_ndeg_tm_dslash_cuda_gen::i, ndim, and x.

Referenced by comm_create_topology().

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◆ comm_coord()

int comm_coord ( int dim )

Return the coording of this process in the dimension dim

Parameters

dim	Dimension which we are querying

Returns: Coordinate of this process

Definition at line 411 of file comm_common.cpp.

References comm_coords(), comm_default_topology(), and dim.

Referenced by commCoords(), DslashCuda::DslashCuda(), quda::launch_kernel_random(), and site_link_sanity_check_internal_12().

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◆ comm_coords()

const int* comm_coords ( const Topology * topo )

Definition at line 314 of file comm_common.cpp.

References Topology_s::my_coords.

Referenced by comm_coord(), and comm_rank_displaced().

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◆ comm_coords_from_rank()

const int* comm_coords_from_rank	(	const Topology *	topo,
		int	rank
	)

Definition at line 320 of file comm_common.cpp.

References Topology_s::coords, and rank.

◆ comm_create_topology()

Topology* comm_create_topology	(	int	ndim,
		const int *	dims,
		QudaCommsMap	rank_from_coords,
		void *	map_data
	)

Definition at line 94 of file comm_common.cpp.

References advance_coords(), comm_rank(), Topology_s::coords, Topology_s::dims, errorQuda, fused_exterior_ndeg_tm_dslash_cuda_gen::i, index(), int, Topology_s::my_coords, Topology_s::my_rank, Topology_s::ndim, ndim, nodes, QUDA_MAX_DIM, rand_seed, rank, Topology_s::ranks, safe_malloc, and x.

Referenced by comm_init().

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◆ comm_declare_receive_relative_()

MsgHandle* comm_declare_receive_relative_	(	const char *	func,
		const char *	file,
		int	line,
		void *	buffer,
		int	dim,
		int	dir,
		size_t	nbytes
	)

Receive from the "dir" direction in the "dim" dimension

Definition at line 460 of file comm_common.cpp.

References attributes, checkCudaError, comm_declare_receive_displaced(), dim, e, err, errorQuda, func, printfQuda, and QUDA_MAX_DIM.

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◆ comm_declare_send_relative_()

MsgHandle* comm_declare_send_relative_	(	const char *	func,
		const char *	file,
		int	line,
		void *	buffer,
		int	dim,
		int	dir,
		size_t	nbytes
	)

Send to the "dir" direction in the "dim" dimension

Definition at line 421 of file comm_common.cpp.

References attributes, checkCudaError, comm_declare_send_displaced(), quda::blas::copy(), device_free, device_malloc, dim, e, err, errorQuda, func, host_free, printfQuda, QUDA_MAX_DIM, safe_malloc, and tmp.

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◆ comm_declare_strided_receive_relative_()

MsgHandle* comm_declare_strided_receive_relative_	(	const char *	func,
		const char *	file,
		int	line,
		void *	buffer,
		int	dim,
		int	dir,
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Strided receive from the "dir" direction in the "dim" dimension

Definition at line 538 of file comm_common.cpp.

References attributes, checkCudaError, comm_declare_strided_receive_displaced(), dim, e, err, errorQuda, func, fused_exterior_ndeg_tm_dslash_cuda_gen::i, printfQuda, and QUDA_MAX_DIM.

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◆ comm_declare_strided_send_relative_()

MsgHandle* comm_declare_strided_send_relative_	(	const char *	func,
		const char *	file,
		int	line,
		void *	buffer,
		int	dim,
		int	dir,
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Strided send to the "dir" direction in the "dim" dimension

Definition at line 495 of file comm_common.cpp.

References attributes, checkCudaError, comm_declare_strided_send_displaced(), quda::blas::copy(), device_free, device_malloc, dim, e, err, errorQuda, func, host_free, fused_exterior_ndeg_tm_dslash_cuda_gen::i, printfQuda, QUDA_MAX_DIM, safe_malloc, and tmp.

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◆ comm_default_topology()

Topology* comm_default_topology ( void )

Definition at line 361 of file comm_common.cpp.

References default_topo, and errorQuda.

Referenced by comm_coord(), comm_declare_receive_displaced(), comm_declare_send_displaced(), comm_declare_strided_receive_displaced(), comm_declare_strided_send_displaced(), comm_dim(), and comm_finalize().

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◆ comm_destroy_topology()

void comm_destroy_topology ( Topology * topo )

Definition at line 137 of file comm_common.cpp.

References Topology_s::coords, host_free, and Topology_s::ranks.

Referenced by comm_finalize().

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◆ comm_dim()

int comm_dim ( int dim )

Return the number of processes in the dimension dim

Parameters

dim	Dimension which we are querying

Returns: Length of process dimensions

Definition at line 404 of file comm_common.cpp.

References comm_default_topology(), comm_dims(), and dim.

Referenced by quda::calculateY(), comm_dim_partitioned(), comm_init(), comm_peer2peer_init(), commDim(), quda::LatticeField::createIPCComms(), quda::LatticeField::destroyIPCComms(), DslashCuda::DslashCuda(), quda::launch_kernel_random(), set_layout(), and site_link_sanity_check_internal_12().

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◆ comm_dim_partitioned()

int comm_dim_partitioned ( int dim )

Definition at line 597 of file comm_common.cpp.

References comm_dim(), dim, and manual_set_partition.

Referenced by quda::GenericPackGhostLauncher< Float, Ns, Ms, Nc, Mc, Arg >::bytes(), quda::calculateY(), quda::CalculateYArg< Float, coarseGauge, fineGauge, fineSpinor, fineSpinorTmp, fineClover >::CalculateYArg(), GaugeAlgTest::checkDimsPartitioned(), comm_init(), comm_partitioned(), commDimPartitioned(), quda::cudaGaugeField::commsComplete(), computeHISQForceQuda(), quda::GaugeField::createGhostZone(), quda::ColorSpinorField::createGhostZone(), DslashCuda::DslashCuda(), quda::GaugeField::exchange(), quda::ColorSpinorField::exchange(), quda::cudaGaugeField::exchangeExtendedGhost(), quda::cpuGaugeField::exchangeExtendedGhost(), quda::cudaGaugeField::exchangeGhost(), quda::cudaColorSpinorField::exchangeGhost(), quda::ExtractGhostArg< Order, nDim >::ExtractGhostArg(), quda::gaugefixingFFT(), gaugeLink_mgpu(), quda::GenericPackGhostLauncher< Float, Ns, Ms, Nc, Mc, Arg >::GenericPackGhostLauncher(), hisq_force_init(), hisq_force_test(), quda::cudaGaugeField::injectGhost(), main(), neighborIndex_mg(), quda::PackGhostArg< Field >::PackGhostArg(), quda::PGaugeExchange(), quda::cudaGaugeField::recvStart(), quda::cudaGaugeField::sendStart(), GaugeAlgTest::SetUp(), and quda::XSD::XSD().

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◆ comm_dim_partitioned_reset()

void comm_dim_partitioned_reset ( )

Definition at line 590 of file comm_common.cpp.

References fused_exterior_ndeg_tm_dslash_cuda_gen::i, manual_set_partition, and QUDA_MAX_DIM.

Referenced by commDimPartitionedReset().

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◆ comm_dim_partitioned_set()

void comm_dim_partitioned_set ( int dim )

Definition at line 583 of file comm_common.cpp.

References dim, and manual_set_partition.

Referenced by commDimPartitionedSet().

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◆ comm_dims()

const int* comm_dims ( const Topology * topo )

Definition at line 308 of file comm_common.cpp.

References Topology_s::dims.

Referenced by comm_dim(), and comm_rank_displaced().

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◆ comm_drand()

double comm_drand ( void )

We provide our own random number generator to avoid re-seeding rand(), which might also be used by the calling application. This is a clone of rand48(), provided by stdlib.h on UNIX.

Returns: a random double in the interval [0,1)

Definition at line 82 of file comm_common.cpp.

References a, and rand_seed.

Referenced by insertNoise(), and quda::random().

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◆ comm_enable_intranode()

void comm_enable_intranode ( bool enable )

Enable / disable intra-node (non-peer-to-peer) communication.

Parameters

[in] enable Boolean flag to enable / disable intra-node (non peer-to-peer) communication

Definition at line 298 of file comm_common.cpp.

References enable_intranode.

◆ comm_enable_peer2peer()

void comm_enable_peer2peer ( bool enable )

Enable / disable peer-to-peer communication: used for dslash policies that do not presently support peer-to-peer communication.

Parameters

[in] enable Boolean flag to enable / disable peer-to-peer communication

Definition at line 288 of file comm_common.cpp.

References enable_p2p.

Referenced by anonymous_namespace{dslash_policy.cuh}::DslashPolicyTune::apply(), and anonymous_namespace{dslash_policy.cuh}::DslashPolicyTune::DslashPolicyTune().

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◆ comm_finalize()

void comm_finalize ( void )

Definition at line 573 of file comm_common.cpp.

References comm_default_topology(), comm_destroy_topology(), and comm_set_default_topology().

Referenced by endQuda().

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◆ comm_gdr_blacklist()

bool comm_gdr_blacklist ( )

Query if GPU Direct RDMA communication is blacklisted for this GPU.

Definition at line 627 of file comm_common.cpp.

References comm_barrier(), comm_gpuid(), comm_rank(), errorQuda, getenv(), getVerbosity(), printf(), and QUDA_SILENT.

Referenced by comm_peer2peer_init(), and anonymous_namespace{dslash_policy.cuh}::DslashFactory::create().

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◆ comm_gdr_enabled()

bool comm_gdr_enabled ( )

Query if GPU Direct RDMA communication is enabled (global setting)

Definition at line 611 of file comm_common.cpp.

References getenv(), and strcmp().

Referenced by comm_peer2peer_init(), quda::cudaGaugeField::commsComplete(), quda::cudaColorSpinorField::commsQuery(), quda::cudaColorSpinorField::commsWait(), quda::LatticeField::createComms(), quda::DslashCoarsePolicyTune::DslashCoarsePolicyTune(), anonymous_namespace{dslash_policy.cuh}::DslashPolicyTune::DslashPolicyTune(), quda::cudaGaugeField::exchangeExtendedGhost(), quda::cudaGaugeField::exchangeGhost(), quda::cudaColorSpinorField::exchangeGhost(), quda::cudaGaugeField::injectGhost(), quda::cudaGaugeField::recvStart(), quda::cudaColorSpinorField::recvStart(), quda::cudaGaugeField::sendStart(), and quda::cudaColorSpinorField::sendStart().

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◆ comm_hostname()

char* comm_hostname ( void )

Definition at line 58 of file comm_common.cpp.

Referenced by comm_gather_hostname(), comm_init(), and comm_peer2peer_init().

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◆ comm_intranode_enabled()

bool comm_intranode_enabled	(	int	dir,
		int	dim
	)

Query if intra-node (non-peer-to-peer) communication is enabled in a given dimension and direction

Parameters

dir	Direction (0 - backwards, 1 forwards)
dim	Dimension (0-3)

Returns: Whether intra-node communication is enabled

Definition at line 294 of file comm_common.cpp.

References dim, enable_intranode, and intranode_enabled.

◆ comm_ndim()

int comm_ndim ( const Topology * topo )

Definition at line 302 of file comm_common.cpp.

References Topology_s::ndim.

Referenced by comm_declare_receive_displaced(), comm_declare_send_displaced(), comm_declare_strided_receive_displaced(), and comm_declare_strided_send_displaced().

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◆ comm_neighbor_rank()

int comm_neighbor_rank	(	int	dir,
		int	dim
	)

Definition at line 396 of file comm_common.cpp.

References comm_set_neighbor_ranks(), dim, neighbor_rank, and neighbors_cached.

Referenced by comm_peer2peer_init().

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◆ comm_partitioned()

int comm_partitioned ( )

Loop over comm_dim_partitioned(dim) for all comms dimensions.

Returns: Whether any communications dimensions are partitioned

Definition at line 602 of file comm_common.cpp.

References comm_dim_partitioned(), and fused_exterior_ndeg_tm_dslash_cuda_gen::i.

Referenced by quda::DslashCoarseLaunch::operator()().

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◆ comm_peer2peer_enabled()

bool comm_peer2peer_enabled	(	int	dir,
		int	dim
	)

Query if peer-to-peer communication is enabled

Parameters

dir	Direction (0 - backwards, 1 forwards)
dim	Dimension (0-3)

Returns: Whether peer-to-peer is enabled

Definition at line 265 of file comm_common.cpp.

References dim, enable_p2p, and peer2peer_enabled.

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◆ comm_peer2peer_enabled_global()

int comm_peer2peer_enabled_global ( )

Query what peer-to-peer communication is enabled globally

Returns: 2-bit number reporting 1 for copy engine, 2 for remote writes

Definition at line 269 of file comm_common.cpp.

References comm_allreduce_int(), comm_peer2peer_enabled(), dim, enable_p2p, enable_peer_to_peer, and quda::blas::init().

Referenced by anonymous_namespace{dslash_policy.cuh}::DslashPolicyTune::apply(), quda::DslashCoarsePolicyTune::DslashCoarsePolicyTune(), anonymous_namespace{dslash_policy.cuh}::DslashPolicyTune::DslashPolicyTune(), and quda::cudaColorSpinorField::exchangeGhost().

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◆ comm_peer2peer_init()

void comm_peer2peer_init ( const char * hostname_recv_buf )

Enabled peer-to-peer communication.

Parameters

hostname_buf Array that holds all process hostnames

Definition at line 154 of file comm_common.cpp.

References abs(), atoi(), checkCudaErrorNoSync, comm_barrier(), comm_dim(), comm_gather_gpuid(), comm_gdr_blacklist(), comm_gdr_enabled(), comm_gpuid(), comm_hostname(), comm_neighbor_rank(), comm_rank(), comm_set_neighbor_ranks(), comm_size(), dim, enable_peer_to_peer, errorQuda, getenv(), getVerbosity(), gpuid, host_free, intranode_enabled, neighbor_rank, peer2peer_enabled, peer2peer_init, printf(), printfQuda, prop, QUDA_SILENT, safe_malloc, and strncmp().

Referenced by comm_init().

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◆ comm_rank_displaced()

int comm_rank_displaced	(	const Topology *	topo,
		const int	displacement[]
	)

Definition at line 337 of file comm_common.cpp.

References comm_coords(), comm_dims(), comm_rank_from_coords(), fused_exterior_ndeg_tm_dslash_cuda_gen::i, mod(), Topology_s::ndim, and QUDA_MAX_DIM.

Referenced by comm_declare_receive_displaced(), comm_declare_send_displaced(), comm_declare_strided_receive_displaced(), comm_declare_strided_send_displaced(), and comm_set_neighbor_ranks().

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◆ comm_rank_from_coords()

int comm_rank_from_coords	(	const Topology *	topo,
		const int *	coords
	)

Definition at line 326 of file comm_common.cpp.

References Topology_s::dims, index(), Topology_s::ndim, and Topology_s::ranks.

Referenced by comm_rank_displaced().

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◆ comm_set_default_topology()

void comm_set_default_topology ( Topology * topo )

Definition at line 355 of file comm_common.cpp.

References default_topo.

Referenced by comm_finalize(), and comm_init().

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◆ comm_set_neighbor_ranks()

void comm_set_neighbor_ranks ( Topology * topo )

Definition at line 374 of file comm_common.cpp.

References comm_rank_displaced(), d, default_topo, errorQuda, neighbor_rank, and neighbors_cached.

Referenced by comm_neighbor_rank(), and comm_peer2peer_init().

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◆ commAsyncReduction()

bool commAsyncReduction ( )

Definition at line 684 of file comm_common.cpp.

References asyncReduce.

Referenced by quda::blas::caxpyXmazMR(), quda::ReduceArg< T >::ReduceArg(), and reduceLaunch().

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◆ commAsyncReductionSet()

void commAsyncReductionSet ( bool async_reduction )

Definition at line 686 of file comm_common.cpp.

References asyncReduce.

Referenced by quda::MR::operator()().

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◆ commCoords()

int commCoords ( int dir )

Definition at line 672 of file comm_common.cpp.

References comm_coord().

Referenced by applyGaugeFieldScaling(), createSiteLinkCPU(), and quda::GCR::operator()().

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◆ commDim()

int commDim ( int dir )

Definition at line 670 of file comm_common.cpp.

References comm_dim().

Referenced by applyGaugeFieldScaling(), createSiteLinkCPU(), quda::DiracTwistedCloverPC::Dslash(), quda::DiracTwistedCloverPC::DslashXpay(), quda::exchangeExtendedGhost(), quda::extractGhost(), and quda::extractGhostEx().

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◆ commDimPartitioned()

int commDimPartitioned ( int dir )

Definition at line 674 of file comm_common.cpp.

References comm_dim_partitioned().

Referenced by quda::cudaColorSpinorField::commsQuery(), quda::cudaColorSpinorField::commsWait(), createCloverQuda(), quda::LatticeField::createComms(), quda::cudaColorSpinorField::createComms(), quda::LatticeField::destroyComms(), initQudaMemory(), loadGaugeQuda(), quda::cudaColorSpinorField::recvStart(), quda::cudaColorSpinorField::scatter(), quda::cudaColorSpinorField::scatterExtended(), quda::cudaColorSpinorField::sendStart(), quda::shiftColorSpinorField(), quda::ShiftColorSpinorFieldArg< Output, Input >::ShiftColorSpinorFieldArg(), and updateR().

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◆ commDimPartitionedReset()

void commDimPartitionedReset ( )

Reset the comm dim partioned array to zero,.

This should only be needed for automated testing when different partitioning is applied within a single run.

Definition at line 678 of file comm_common.cpp.

References comm_dim_partitioned_reset().

Referenced by end().

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◆ commDimPartitionedSet()

void commDimPartitionedSet ( int dir )

Definition at line 676 of file comm_common.cpp.

References comm_dim_partitioned_set().

Referenced by process_command_line_option(), StaggeredDslashTest::SetUp(), and DslashTest::SetUp().

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◆ commGlobalReduction()

bool commGlobalReduction ( )

Definition at line 680 of file comm_common.cpp.

References globalReduce.

Referenced by quda::tuneLaunch().

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◆ commGlobalReductionSet()

void commGlobalReductionSet ( bool global_reduction )

Definition at line 682 of file comm_common.cpp.

References globalReduce.

Referenced by quda::IncEigCG::eigCGsolve(), quda::PreconCG::operator()(), quda::MR::operator()(), and quda::SD::operator()().

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◆ index()

static int index	(	int	ndim,
		const int *	dims,
		const int *	x
	)

inlinestatic

Utility function for indexing into Topology::ranks[]

Parameters

ndim	Number of grid dimensions in the network topology
dims	Array of grid dimensions
x	Node coordinates

Returns: Linearized index cooresponding to the node coordinates

Definition at line 32 of file comm_common.cpp.

References fused_exterior_ndeg_tm_dslash_cuda_gen::i, idx, ndim, and x.

Referenced by comm_create_topology(), and comm_rank_from_coords().

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◆ mod()

static int mod	(	int	a,
		int	b
	)

inlinestatic

Definition at line 332 of file comm_common.cpp.

References a, and b.

Referenced by comm_rank_displaced(), and quda::polarSu3().

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◆ reduceDouble()

void reduceDouble ( double & sum )

Definition at line 665 of file comm_common.cpp.

References comm_allreduce(), globalReduce, and sum().

Referenced by quda::blas::normCpu(), quda::blas::reDotProductCpu(), and quda::SolverParam::updateInvertParam().

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◆ reduceDoubleArray()

void reduceDoubleArray	(	double *	sum,
		const int	len
	)

Definition at line 667 of file comm_common.cpp.

References comm_allreduce_array(), globalReduce, len, and sum().

Referenced by quda::blas::cDotProduct(), quda::blas::cDotProductCopy(), quda::blas::cDotProductCpu(), quda::blas::hDotProduct(), quda::blas::hDotProduct_Anorm(), quda::blas::HeavyQuarkResidualNormCpu(), quda::blas::reDotProduct(), reduceCuda(), and mixed::reduceCuda().

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◆ reduceMaxDouble()

void reduceMaxDouble ( double & max )

Definition at line 663 of file comm_common.cpp.

References comm_allreduce_max().

Referenced by quda::maxGauge().

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Variable Documentation

◆ asyncReduce

bool asyncReduce = false

static

Definition at line 661 of file comm_common.cpp.

Referenced by commAsyncReduction(), and commAsyncReductionSet().

◆ default_topo

Topology* default_topo = NULL

Definition at line 353 of file comm_common.cpp.

Referenced by comm_default_topology(), comm_set_default_topology(), and comm_set_neighbor_ranks().

◆ enable_intranode

bool enable_intranode = true

static

Definition at line 292 of file comm_common.cpp.

Referenced by comm_enable_intranode(), and comm_intranode_enabled().

◆ enable_p2p

bool enable_p2p = true

static

Definition at line 263 of file comm_common.cpp.

Referenced by comm_enable_peer2peer(), comm_peer2peer_enabled(), and comm_peer2peer_enabled_global().

◆ enable_peer_to_peer

int enable_peer_to_peer = 3

static

Definition at line 152 of file comm_common.cpp.

Referenced by comm_peer2peer_enabled_global(), and comm_peer2peer_init().

◆ globalReduce

bool globalReduce = true

static

Definition at line 660 of file comm_common.cpp.

Referenced by commGlobalReduction(), commGlobalReductionSet(), reduceDouble(), and reduceDoubleArray().

◆ intranode_enabled

bool intranode_enabled[2][4]

static

Initial value:

= { {false,false,false,false},

{false,false,false,false} }

Definition at line 149 of file comm_common.cpp.

Referenced by comm_intranode_enabled(), and comm_peer2peer_init().

◆ manual_set_partition

int manual_set_partition[QUDA_MAX_DIM] = {0}

static

Definition at line 581 of file comm_common.cpp.

Referenced by comm_dim_partitioned(), comm_dim_partitioned_reset(), and comm_dim_partitioned_set().

◆ neighbor_rank

int neighbor_rank[2][4]

static

Initial value:

= { {-1,-1,-1,-1},

{-1,-1,-1,-1} }

Definition at line 369 of file comm_common.cpp.

Referenced by comm_neighbor_rank(), comm_peer2peer_init(), and comm_set_neighbor_ranks().

◆ neighbors_cached

bool neighbors_cached = false

static

Definition at line 372 of file comm_common.cpp.

Referenced by comm_neighbor_rank(), and comm_set_neighbor_ranks().

◆ peer2peer_enabled

bool peer2peer_enabled[2][4]

static

Initial value:

= { {false,false,false,false},

{false,false,false,false} }

Definition at line 145 of file comm_common.cpp.

Referenced by comm_peer2peer_enabled(), and comm_peer2peer_init().

◆ peer2peer_init

bool peer2peer_init = false

static

Definition at line 147 of file comm_common.cpp.

Referenced by comm_peer2peer_init().

◆ rand_seed

unsigned long int rand_seed = 137

static

Definition at line 73 of file comm_common.cpp.

Referenced by comm_create_topology(), and comm_drand().

Classes

Functions

Variables

Function Documentation

◆ advance_coords()

◆ comm_coord()

◆ comm_coords()

◆ comm_coords_from_rank()

◆ comm_create_topology()

◆ comm_declare_receive_relative_()

◆ comm_declare_send_relative_()

◆ comm_declare_strided_receive_relative_()

◆ comm_declare_strided_send_relative_()

◆ comm_default_topology()

◆ comm_destroy_topology()

◆ comm_dim()

◆ comm_dim_partitioned()

◆ comm_dim_partitioned_reset()

◆ comm_dim_partitioned_set()

◆ comm_dims()

◆ comm_drand()

◆ comm_enable_intranode()

◆ comm_enable_peer2peer()

◆ comm_finalize()

◆ comm_gdr_blacklist()

◆ comm_gdr_enabled()

◆ comm_hostname()

◆ comm_intranode_enabled()

◆ comm_ndim()

◆ comm_neighbor_rank()

◆ comm_partitioned()

◆ comm_peer2peer_enabled()

◆ comm_peer2peer_enabled_global()

◆ comm_peer2peer_init()

◆ comm_rank_displaced()

◆ comm_rank_from_coords()

◆ comm_set_default_topology()

◆ comm_set_neighbor_ranks()

◆ commAsyncReduction()

◆ commAsyncReductionSet()

◆ commCoords()

◆ commDim()

◆ commDimPartitioned()

◆ commDimPartitionedReset()

◆ commDimPartitionedSet()

◆ commGlobalReduction()

◆ commGlobalReductionSet()

◆ index()

◆ mod()

◆ reduceDouble()

◆ reduceDoubleArray()

◆ reduceMaxDouble()

Variable Documentation

◆ asyncReduce

◆ default_topo

◆ enable_intranode

◆ enable_p2p

◆ enable_peer_to_peer

◆ globalReduce

◆ intranode_enabled

◆ manual_set_partition

◆ neighbor_rank

◆ neighbors_cached

◆ peer2peer_enabled

◆ peer2peer_init

◆ rand_seed