DistributionBloc.h File Reference

#include "Type.h"

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Functions
static unsigned	BlockNumberOfElementProc (const unsigned glen, const unsigned rank, const unsigned nbprocs, const unsigned bsz, const unsigned pos)
static unsigned	blockSize (const unsigned glen, const unsigned nbprocs, const ParisBlock_param_t *param)
static unsigned	computeBlockBoundInf (const unsigned bsz, const unsigned rank, const unsigned nbprocs, const unsigned pos)
static void	computeBlockBounds (unsigned long *low, unsigned long *high, const unsigned glen, const unsigned rank, const unsigned nbprocs, const unsigned bsz, const unsigned pos)
static unsigned	computeBlockBoundSup (const unsigned glen, const unsigned bsz, const unsigned rank, const unsigned nbprocs, const unsigned pos)
static unsigned	MaxNumberOfBlock (const unsigned glen, const unsigned nbprocs, const unsigned bsz)
static unsigned	NumberOfBlockProc (const unsigned glen, const unsigned nbprocs, const unsigned bsz, const unsigned rank)
static unsigned	OwnerBlock (const unsigned bid, const unsigned nbprocs)
static unsigned	TotalNumberOfElementProc (const unsigned glen, const unsigned rank, const unsigned nbprocs, const unsigned bsz)

Function Documentation

BlockNumberOfElementProc()

static unsigned BlockNumberOfElementProc ( const unsigned  glen, const unsigned  rank, const unsigned  nbprocs, const unsigned  bsz, const unsigned  pos  )

inlinestatic

Definition at line 62 of file DistributionBloc.h.

Referenced by computeReceiveBlock1D(), and computeSendBlock1D().

                                        {

    unsigned long low = ( pos * nbprocs + rank ) * bsz;
    unsigned long end = low + bsz;
    unsigned long high = (glen < end ? glen : end);

    return ( high - low );

  }

blockSize()

static unsigned blockSize ( const unsigned  glen, const unsigned  nbprocs, const ParisBlock_param_t *  param  )

inlinestatic

Definition at line 34 of file DistributionBloc.h.

References ParisBlock_param_t::blocksize, PARISBLOCK_BLOCK, PARISBLOCK_BLOCKCYCLIC, PARISBLOCK_CYCLIC, ParisBlock_param_t::type, and ParisBlock_param_t::unitblocksize.

Referenced by computeReceiveBlock1D(), computeReceiveDataBlock1DServer(), computeSendBlock1D(), computeSendDataBlock1DClient(), and doSchedule().

                                                                                                                 {
    switch(param->type)
      {
      case PARISBLOCK_BLOCK:
   {
     unsigned nbbloc = (glen + param->unitblocksize - 1) / param->unitblocksize;
     return ((nbbloc + nbprocs - 1 ) / nbprocs) * param->unitblocksize;
   }
      case PARISBLOCK_CYCLIC: return 1; break;
      case PARISBLOCK_BLOCKCYCLIC: return param->blocksize; break;
      }
    return 0;
  }

computeBlockBoundInf()

static unsigned computeBlockBoundInf ( const unsigned  bsz, const unsigned  rank, const unsigned  nbprocs, const unsigned  pos  )

inlinestatic

Definition at line 84 of file DistributionBloc.h.

Referenced by computeSendDataBlock1DClient().

                                                                                                                                   {
    return  ( pos * nbprocs + rank) * bsz;
  }

computeBlockBounds()

static void computeBlockBounds ( unsigned long *  low, unsigned long *  high, const unsigned  glen, const unsigned  rank, const unsigned  nbprocs, const unsigned  bsz, const unsigned  pos  )

inlinestatic

Definition at line 74 of file DistributionBloc.h.

Referenced by computeSendBlock1D().

                                                                                                    {

    unsigned long start = (pos * nbprocs + rank) * bsz;
    unsigned long end = start + bsz;
    *low =  start;
    *high = ((glen <= end)?glen:end); // min
  }

computeBlockBoundSup()

static unsigned computeBlockBoundSup ( const unsigned  glen, const unsigned  bsz, const unsigned  rank, const unsigned  nbprocs, const unsigned  pos  )

inlinestatic

Definition at line 88 of file DistributionBloc.h.

                                                                 {
    unsigned tmp = ( pos * nbprocs + rank + 1) * bsz;
    return ((glen <= tmp)?glen:tmp); // min
  }

MaxNumberOfBlock()

static unsigned MaxNumberOfBlock ( const unsigned  glen, const unsigned  nbprocs, const unsigned  bsz  )

inlinestatic

Definition at line 18 of file DistributionBloc.h.

                                                                                                           {
    unsigned nbbloc = (glen + bsz - 1) / bsz;
    return ((nbbloc + nbprocs - 1 ) / nbprocs);
  }

NumberOfBlockProc()

static unsigned NumberOfBlockProc ( const unsigned  glen, const unsigned  nbprocs, const unsigned  bsz, const unsigned  rank  )

inlinestatic

Definition at line 23 of file DistributionBloc.h.

Referenced by computeReceiveBlock1D(), computeSendBlock1D(), and TotalNumberOfElementProc().

                                                                                                                                 {
    unsigned nbbloc = (glen + bsz - 1 ) / bsz;
    return (nbbloc / nbprocs) + (rank < (nbbloc % nbprocs ) ) ;
  }

OwnerBlock()

static unsigned OwnerBlock ( const unsigned  bid, const unsigned  nbprocs  )

inlinestatic

Definition at line 29 of file DistributionBloc.h.

Referenced by computeReceiveBlock1D(), and computeSendBlock1D().

                                                                                {
    return bid % nbprocs;
  }

TotalNumberOfElementProc()

static unsigned TotalNumberOfElementProc ( const unsigned  glen, const unsigned  rank, const unsigned  nbprocs, const unsigned  bsz  )

inlinestatic

Definition at line 49 of file DistributionBloc.h.

References NumberOfBlockProc().

                                                                                                                                        {

    unsigned nbblocfull = NumberOfBlockProc(glen, nbprocs, bsz, rank) - 1;
    // Is the last full ?
    unsigned long low = ( nbblocfull * nbprocs + rank ) * bsz;
    unsigned long end = low + bsz;
    unsigned long high = (glen < end ? glen : end);

    return nbblocfull * bsz + ( high - low );

  }

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