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/* This is part of the netCDF package.
Copyright 2005 University Corporation for Atmospheric Research/Unidata
See COPYRIGHT file for conditions of use.
Test fix of bug involving creation of a file with PnetCDF APIs,
then opening and modifying the file with netcdf.
Author: Wei-keng Liao.
*/
#include <nc_tests.h>
#include "err_macros.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mpi.h>
#include <netcdf.h>
#include <netcdf_par.h>
#include <assert.h>
#define NVARS 6
#define NX 5
#define FILENAME "tst_pnetcdf.nc"
#define CHK_ERR(e) { \
if (e != NC_NOERR) { \
printf("Error at %s:%d : %s\n", __FILE__,__LINE__, nc_strerror(e)); \
goto fn_exit; \
} \
}
#define EXP_ERR(e, exp) { \
if (e != exp) { \
printf("Error at %s:%d : expect "#exp" but got %d\n", __FILE__,__LINE__, e); \
} \
}
int main(int argc, char* argv[])
{
int i, j, rank, nprocs, ncid, cmode, varid[NVARS], dimid[2], *buf;
int st, nerrs=0;
char str[32];
size_t start[2], count[2];
MPI_Comm comm=MPI_COMM_SELF;
MPI_Info info=MPI_INFO_NULL;
printf("\n*** Testing bug fix with changing PnetCDF variable offsets...");
MPI_Init(&argc,&argv);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if (nprocs > 1 && rank == 0)
printf("This test program is intended to run on ONE process\n");
if (rank > 0) goto fn_exit;
/* first, use PnetCDF to create a file with default header/variable alignment */
#ifdef DISABLE_PNETCDF_ALIGNMENT
MPI_Info_create(&info);
MPI_Info_set(info, "nc_header_align_size", "1");
MPI_Info_set(info, "nc_var_align_size", "1");
#endif
cmode = NC_CLOBBER;
st = nc_create_par(FILENAME, cmode, comm, info, &ncid);
#ifdef USE_PNETCDF
CHK_ERR(st)
#else
EXP_ERR(st, NC_ENOTBUILT)
goto fn_exit;
#endif
/* define dimension */
st = nc_def_dim(ncid, "Y", NC_UNLIMITED, &dimid[0]); CHK_ERR(st)
st = nc_def_dim(ncid, "X", NX, &dimid[1]); CHK_ERR(st)
/* Odd numbers are fixed variables, even numbers are record variables */
for (i=0; i<NVARS; i++) {
if (i%2) {
sprintf(str,"fixed_var_%d",i);
st = nc_def_var(ncid, str, NC_INT, 1, dimid+1, &varid[i]); CHK_ERR(st)
}
else {
sprintf(str,"record_var_%d",i);
st = nc_def_var(ncid, str, NC_INT, 2, dimid, &varid[i]); CHK_ERR(st)
}
}
st = nc_enddef(ncid); CHK_ERR(st)
/* Note NC_INDEPENDENT is the default */
st = nc_var_par_access(ncid, NC_GLOBAL, NC_INDEPENDENT); CHK_ERR(st)
/* write all variables */
buf = (int*) malloc(NX * sizeof(int));
for (i=0; i<NVARS; i++) {
for (j=0; j<NX; j++) buf[j] = i*10 + j;
if (i%2) {
start[0] = 0; count[0] = NX;
st = nc_put_vara_int(ncid, varid[i], start, count, buf); CHK_ERR(st)
}
else {
start[0] = 0; start[1] = 0;
count[0] = 1; count[1] = NX;
st = nc_put_vara_int(ncid, varid[i], start, count, buf); CHK_ERR(st)
}
}
st = nc_close(ncid); CHK_ERR(st)
if (info != MPI_INFO_NULL) MPI_Info_free(&info);
/* re-open the file with netCDF (parallel) and enter define mode */
st = nc_open_par(FILENAME, NC_WRITE, comm, info, &ncid); CHK_ERR(st)
st = nc_redef(ncid); CHK_ERR(st)
/* add attributes to make header grow */
for (i=0; i<NVARS; i++) {
sprintf(str, "annotation_for_var_%d",i);
st = nc_put_att_text(ncid, varid[i], "text_attr", strlen(str), str); CHK_ERR(st)
}
st = nc_enddef(ncid); CHK_ERR(st)
/* read variables and check their contents */
for (i=0; i<NVARS; i++) {
for (j=0; j<NX; j++) buf[j] = -1;
if (i%2) {
start[0] = 0; count[0] = NX;
st = nc_get_var_int(ncid, varid[i], buf); CHK_ERR(st)
for (j=0; j<NX; j++)
if (buf[j] != i*10 + j)
printf("unexpected read value var i=%d buf[j=%d]=%d should be %d\n",i,j,buf[j],i*10+j);
}
else {
start[0] = 0; start[1] = 0;
count[0] = 1; count[1] = NX;
st = nc_get_vara_int(ncid, varid[i], start, count, buf); CHK_ERR(st)
for (j=0; j<NX; j++)
if (buf[j] != i*10+j)
printf("unexpected read value var i=%d buf[j=%d]=%d should be %d\n",i,j,buf[j],i*10+j);
}
}
st = nc_close(ncid); CHK_ERR(st)
fn_exit:
MPI_Finalize();
err = nerrs;
SUMMARIZE_ERR;
FINAL_RESULTS;
return (nerrs > 0);
}
/*
Compile:
mpicc -g -o nc_pnc nc_pnc.c -lnetcdf -lcurl -lhdf5_hl -lhdf5 -lpnetcdf -lz -lm
Run:
nc_pnc
Standard Output:
At the time of this test is written, I used the following libraries.
HDF5 version 1.8.10
netCDF version 4.2.1.1 and
PnetCDF version 1.3.1
If macro DISABLE_PNETCDF_ALIGNMENT is defined (i.e. disable PnetCDF
alignment) then there is no standard output.
If macro DISABLE_PNETCDF_ALIGNMENT is NOT defined (i.e. default PnetCDF
alignment) then this test reports unexpected read values below.
unexpected read value var i=1 buf[j=0]=0 should be 10
unexpected read value var i=1 buf[j=1]=0 should be 11
unexpected read value var i=1 buf[j=2]=0 should be 12
unexpected read value var i=1 buf[j=3]=0 should be 13
unexpected read value var i=1 buf[j=4]=0 should be 14
unexpected read value var i=3 buf[j=0]=0 should be 30
unexpected read value var i=3 buf[j=1]=0 should be 31
unexpected read value var i=3 buf[j=2]=0 should be 32
unexpected read value var i=3 buf[j=3]=0 should be 33
unexpected read value var i=3 buf[j=4]=0 should be 34
unexpected read value var i=5 buf[j=0]=0 should be 50
unexpected read value var i=5 buf[j=1]=0 should be 51
unexpected read value var i=5 buf[j=2]=0 should be 52
unexpected read value var i=5 buf[j=3]=0 should be 53
unexpected read value var i=5 buf[j=4]=0 should be 54
*/
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