1 /*
2  * Copyright (c) 1998 Sandia Corporation. Under the terms of Contract
3  * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
4  * retains certain rights in this software.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are
8  * met:
9  *
10  *     * Redistributions of source code must retain the above copyright
11  *       notice, this list of conditions and the following disclaimer.
12  *
13  *     * Redistributions in binary form must reproduce the above
14  *       copyright notice, this list of conditions and the following
15  *       disclaimer in the documentation and/or other materials provided
16  *       with the distribution.
17  *
18  *     * Neither the name of Sandia Corporation nor the names of its
19  *       contributors may be used to endorse or promote products derived
20  *       from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
25  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
26  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
32  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  */
35 /*****************************************************************************/
36 /*****************************************************************************/
37 /* Function(s) contained in this file:
38  * 	ex_get_init_info()
39  *****************************************************************************
40  * This function reads information about the processors for which the
41  * decomposition was performed.
42  *****************************************************************************
43  * Variable Index:
44  *	exoid		  - The NetCDF ID of an already open NemesisI file.
45  *	num_proc	  - The number of processors in the decomposition.
46  *	num_proc_in_f	  - The number of processors the file contains
47  *			    information for.
48  */
49 /*****************************************************************************/
50 /*****************************************************************************/
51 /*****************************************************************************/
52 
53 #include <stdio.h>
54 
55 #include <netcdf.h>
56 
57 #include <exodusII.h>
58 #include <exodusII_int.h>
59 
ex_get_init_info(int exoid,int * num_proc,int * num_proc_in_f,char * ftype)60 int ex_get_init_info(int   exoid,
61                      int  *num_proc,
62                      int  *num_proc_in_f,
63                      char *ftype
64 		     )
65 {
66   const char *func_name="ex_get_init_info";
67 
68   int   dimid, status;
69   size_t ltempsv;
70 
71   char   errmsg[MAX_ERR_LENGTH];
72   /*-----------------------------Execution begins-----------------------------*/
73 
74   exerrval = 0; /* clear error code */
75 
76   /* Get the file type */
77   if (ex_get_file_type(exoid, ftype) != EX_NOERR) {
78     exerrval = EX_MSG;
79     sprintf(errmsg,
80             "Error: failed to get file type for file ID %d",
81             exoid);
82     ex_err(func_name, errmsg, exerrval);
83 
84     return (EX_FATAL);
85   }
86 
87   if ((status = nc_inq_dimid(exoid, DIM_NUM_PROCS, &dimid)) != NC_NOERR) {
88     exerrval = status;
89     sprintf(errmsg,
90             "Error: failed to find dimension ID for \"%s\" in file ID %d",
91             DIM_NUM_PROCS, exoid);
92     ex_err(func_name, errmsg, exerrval);
93 
94     return (EX_FATAL);
95   }
96 
97   /* Get the value of the number of processors */
98   if ((status = nc_inq_dimlen(exoid, dimid, &ltempsv)) != NC_NOERR) {
99     exerrval = status;
100     sprintf(errmsg,
101             "Error: failed to find length of dimension \"%s\" in file ID %d",
102             DIM_NUM_PROCS, exoid);
103     ex_err(func_name, errmsg, exerrval);
104 
105     return (EX_FATAL);
106   }
107   *num_proc = ltempsv;
108 
109   /* Get the dimension ID of processors that have info in this file */
110   if ((status = nc_inq_dimid(exoid, DIM_NUM_PROCS_F, &dimid)) != NC_NOERR) {
111     exerrval = status;
112     sprintf(errmsg,
113             "Error: failed to find dimension ID for \"%s\" in file ID %d",
114             DIM_NUM_PROCS_F, exoid);
115     ex_err(func_name, errmsg, exerrval);
116 
117     return (EX_FATAL);
118   }
119 
120   /* Get the value of the number of processors that have info in this file */
121   if ((status = nc_inq_dimlen(exoid, dimid, &ltempsv)) != NC_NOERR) {
122     exerrval = status;
123     sprintf(errmsg,
124             "Error: failed to find length of dimension \"%s\" in file ID %d",
125             DIM_NUM_PROCS_F, exoid);
126     ex_err(func_name, errmsg, exerrval);
127 
128     return (EX_FATAL);
129   }
130   *num_proc_in_f = ltempsv;
131 
132   return (EX_NOERR);
133 }
134