text: /* Support for MPI parallelization.
   * 
   */
  #if defined(HAVE_MPI) && defined(eslLIBRARY)
  #ifndef eslMPI_INCLUDED
  #define eslMPI_INCLUDED
  #include <mpi.h>
  
  #include "esl_alphabet.h"
  #include "esl_msa.h"
  #include "esl_sq.h"
  #include "esl_stopwatch.h"
  
  /* Many MPI implementations are not MPI2.2 compliant, and do not
   * support new MPI2.2 datatypes; work around that absence. [J10/152]
   * This configuration is better here than esl_config.h.in, because
   * we need to #include <mpi.h> first to see if the system MPI does
   * the right thing, and esl_config.h.in is intended to be included
   * BEFORE any system includes.
   */
  #if MPI_VERSION < 2 || MPI_SUBVERSION < 2
  #ifndef MPI_INT64_T
  #define MPI_INT64_T  MPI_LONG_LONG_INT
  #endif
  #ifndef MPI_UINT64_T
  #define MPI_UINT64_T MPI_UNSIGNED_LONG_LONG
  #endif
  #ifndef MPI_UINT32_T
  #define MPI_UINT32_T MPI_UNSIGNED
  #endif
  #ifndef MPI_INT16_T
  #define MPI_INT16_T  MPI_SHORT
  #endif
  #ifndef MPI_UINT8_T
  #define MPI_UINT8_T  MPI_UNSIGNED_CHAR
  #endif
  #endif /*MPI_VERSION,MPI_SUBVERSION*/
  
  /* 1. Communicating optional arrays */
  extern int esl_mpi_PackOpt(void *inbuf, int incount, MPI_Datatype type, void *pack_buf, 
  			   int pack_buf_size, int *position, MPI_Comm comm);
  extern int esl_mpi_PackOptSize(void *inbuf, int incount, MPI_Datatype type, MPI_Comm comm, int *ret_n);
  extern int esl_mpi_UnpackOpt(void *pack_buf, int pack_buf_size, int *pos, void **outbuf, 
  			     int *opt_n, MPI_Datatype type, MPI_Comm comm);
  
  /* 2. Communicating ESL_SQ (single sequences) */
  extern int esl_sq_MPISend(ESL_SQ *sq, int dest, int tag, MPI_Comm comm, char **buf, int *nalloc);
  extern int esl_sq_MPIPackSize(ESL_SQ *sq, MPI_Comm comm, int *ret_n);
  extern int esl_sq_MPIPack(ESL_SQ *sq, char *buf, int n, int *pos, MPI_Comm comm);
  extern int esl_sq_MPIUnpack(const ESL_ALPHABET *abc, char *buf, int n, int *pos, MPI_Comm comm, ESL_SQ **ret_sq);
  extern int esl_sq_MPIRecv(int source, int tag, MPI_Comm comm, const ESL_ALPHABET *abc, 
  			  char **buf, int *nalloc, ESL_SQ **ret_sq);
  
  /* 3. Communicating ESL_MSA (multiple sequence alignments) */
  extern int esl_msa_MPISend(const ESL_MSA *msa, int dest, int tag, MPI_Comm comm, char **buf, int *nalloc);
  extern int esl_msa_MPIPackSize(const ESL_MSA *msa, MPI_Comm comm, int *ret_n);
  extern int esl_msa_MPIPack(const ESL_MSA *msa, char *buf, int n, int *position, MPI_Comm comm);
  extern int esl_msa_MPIUnpack(const ESL_ALPHABET *abc, char *buf, int n, int *pos, MPI_Comm comm, ESL_MSA **ret_msa);
  extern int esl_msa_MPIRecv(int source, int tag, MPI_Comm comm, const ESL_ALPHABET *abc, char **buf, int *nalloc, ESL_MSA **ret_msa);
  
  /* 4. Communicating ESL_STOPWATCH (process timing) */
  extern int esl_stopwatch_MPIReduce(ESL_STOPWATCH *w, int root, MPI_Comm comm);
  
  
  #endif /*eslMPI_INCLUDED*/
  #endif /*HAVE_MPI && eslLIBRARY*/
  
  /*****************************************************************
   * Easel - a library of C functions for biological sequence analysis
   * Version h3.1b2; February 2015
   * Copyright (C) 2015 Howard Hughes Medical Institute.
   * Other copyrights also apply. See the COPYRIGHT file for a full list.
   * 
   * Easel is distributed under the Janelia Farm Software License, a BSD
   * license. See the LICENSE file for more details.
   *
   * SRE, Sat Jun  2 09:07:25 2007 [Janelia]
   * SVN $Id: esl_mpi.h 842 2013-01-06 16:38:46Z eddys $
   * SVN $URL: https://svn.janelia.org/eddylab/eddys/easel/branches/hmmer/3.1/esl_mpi.h $
   *****************************************************************/
  