ne_piinf.c

一个用来实现偏微分方程中网格的计算库

/*
 * Copyright (c) 1998 Sandia Corporation. Under the terms of Contract
 * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
 * retains certain rights in this software.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 * 
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.  
 * 
 *     * Neither the name of Sandia Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 */
/*****************************************************************************/
/*****************************************************************************/
/* Function(s) contained in this file:
 * 	ne_put_init_info()
 *****************************************************************************
 * This function writes information about the processors for which the
 * decomposition was performed.
 *****************************************************************************
 * Variable Index:
 *	neid		  - The NetCDF ID of an already open NemesisI file.
 *	num_proc	  - The number of processors in the decomposition.
 *	num_proc_in_f	  - The number of processors the file contains
 *			    information for.
 *      ftype             - The type of Nemesis file.
 */
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/

#include <stdio.h>

#include <netcdf.h>

#include <exodusII.h>
#include <exodusII_int.h>

#include "ne_nemesisI.h"
#include "ne_nemesisI_int.h"

int ne_put_init_info(int   neid,
                     int   num_proc,
                     int   num_proc_in_f,
                     char *ftype
  )
{
  char *func_name="ne_put_init_info";

  int     dimid, varid;
  int    ltempsv;
  int  lftype;
  int  status;
  char    errmsg[MAX_ERR_LENGTH];
/*-----------------------------Execution begins-----------------------------*/

  exerrval = 0; /* clear error code */

  /* Check the file type */
  if (!ftype) {
    exerrval = EX_MSG;
    sprintf(errmsg,
            "Error: NULL file type input for file ID %d",
            neid);
    ex_err(func_name, errmsg, exerrval);

    return (EX_FATAL);
  }

  /* Set the file type */
  if (ftype[0] == 'p' || ftype[0] == 'P')
    lftype = 0;
  else if (ftype[0] == 's' || ftype[0] == 'S')
    lftype = 1;
  else {
    exerrval = EX_MSG;
    sprintf(errmsg,
            "Error: unknown file type requested for file ID %d",
            neid);
    ex_err(func_name, errmsg, exerrval);

    return (EX_FATAL);
  }

  /* Put file into define mode */
  if ((status = nc_redef(neid)) != NC_NOERR) {
    exerrval = status;
    sprintf(errmsg,
            "Error: failed to put file ID %d into define mode", neid);
    ex_err(func_name, errmsg, exerrval);
    return (EX_FATAL);
  }

  /* Define dimension for the number of processors */
  if ((status = nc_inq_dimid(neid, DIM_NUM_PROCS, &dimid)) != NC_NOERR) {
    ltempsv = num_proc;
    if ((status = nc_def_dim(neid, DIM_NUM_PROCS, ltempsv, &dimid)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Error: failed to dimension \"%s\" in file ID %d",
              DIM_NUM_PROCS, neid);
      ex_err(func_name, errmsg, exerrval);
      /* Leave define mode before returning */
      ne_leavedef(neid, func_name);

      return (EX_FATAL);
    }
  } 

  /* If this is a parallel file then the status vectors are size 1 */
  if (nc_inq_dimid(neid, DIM_NUM_PROCS_F, &dimid) != NC_NOERR) {
    ltempsv = num_proc_in_f;
    if ((status = nc_def_dim(neid, DIM_NUM_PROCS_F, ltempsv, &dimid)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Error: failed to dimension \"%s\" in file ID %d",
              DIM_NUM_PROCS_F, neid);
      ex_err(func_name, errmsg, exerrval);

      /* Leave define mode before returning */
      ne_leavedef(neid, func_name);

      return (EX_FATAL);
    }
  } 

  /* Output the file type */
  if (nc_inq_varid(neid, VAR_FILE_TYPE, &varid) != NC_NOERR) {
    if ((status = nc_def_var(neid, VAR_FILE_TYPE, NC_INT, 0, NULL, &varid)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Error: failed to define file type in file ID %d",
              neid);
      ex_err(func_name, errmsg, exerrval);

      /* Leave define mode before returning */
      ne_leavedef(neid, func_name);

      return (EX_FATAL);
    }

    if (ne_leavedef(neid, func_name) != EX_NOERR)
      return (EX_FATAL);

    if ((status = nc_put_var1_int(neid, varid, NULL, &lftype)) != NC_NOERR) {
      exerrval = status;
      sprintf(errmsg,
              "Error: unable to output file type variable in file ID %d",
              neid);
      ex_err(func_name, errmsg, exerrval);

      return (EX_FATAL);
    }
  }
  else {
    if (ne_leavedef(neid, func_name) != EX_NOERR)
      return (EX_FATAL);
  }

  return (EX_NOERR);
}