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Code Releases Activity

Communicator Policy, NodeCount distinct from Rank count

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This commit is contained in:
paboyle 2017-02-07 01:22:53 -05:00
parent 8e7ca92278
commit 61f82216e2
2 changed files with 10 additions and 0 deletions
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3
lib/communicator/Communicator_base.cc
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@ -33,6 +33,7 @@ namespace Grid {
///////////////////////////////////////////////////////////////
void * CartesianCommunicator::ShmCommBuf;
uint64_t CartesianCommunicator::MAX_MPI_SHM_BYTES = 128*1024*1024;
CartesianCommunicator::CommunicatorPolicy_t CartesianCommunicator::CommunicatorPolicy= CartesianCommunicator::CommunicatorPolicySendrecv;
/////////////////////////////////
// Alloc, free shmem region
@ -88,6 +89,8 @@ void CartesianCommunicator::GlobalSumVector(ComplexD *c,int N)
#if !defined( GRID_COMMS_MPI3) && !defined (GRID_COMMS_MPI3L)
int CartesianCommunicator::NodeCount(void) { return ProcessorCount();};
void CartesianCommunicator::StencilSendToRecvFromBegin(std::vector<CommsRequest_t> &list,
void *xmit,
int xmit_to_rank,

7
lib/communicator/Communicator_base.h
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@ -116,6 +116,12 @@ class CartesianCommunicator {
// Implemented in Communicator_base.C
/////////////////////////////////
static void * ShmCommBuf;
// Isend/Irecv/Wait, or Sendrecv blocking
enum CommunicatorPolicy_t { CommunicatorPolicyIsend , CommunicatorPolicySendrecv };
static CommunicatorPolicy_t CommunicatorPolicy;
static void SetCommunicatorPolicy(CommunicatorPolicy_t policy ) { CommunicatorPolicy = policy; }
size_t heap_top;
size_t heap_bytes;
@ -148,6 +154,7 @@ class CartesianCommunicator {
const std::vector<int> & ThisProcessorCoor(void) ;
const std::vector<int> & ProcessorGrid(void) ;
int ProcessorCount(void) ;
int NodeCount(void) ;
////////////////////////////////////////////////////////////////////////////////
// very VERY rarely (Log, serial RNG) we need world without a grid