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102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/* This is part of the netCDF package.
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Copyright 2005 University Corporation for Atmospheric Research/Unidata
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See COPYRIGHT file for conditions of use.
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This program does some benchmarking of netCDF files for the AR-5
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data.
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$Id: tst_ar5.c,v 1.4 2010/01/11 19:27:11 ed Exp $
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*/
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#include <nc_tests.h>
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#include "netcdf.h"
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#include <unistd.h>
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#include <time.h>
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#include <sys/time.h> /* Extra high precision time info. */
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#include <../ncdump/nciter.h>
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#define MILLION 1000000
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#define MAX_LEN 30
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#define TMP_FILE_NAME "tst_files2_tmp.out"
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/* This function uses the ps command to find the amount of memory in
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use by the process. From the ps man page:
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size SZ approximate amount of swap space that would be required if
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the process were to dirty all writable pages and then be
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swapped out. This number is very rough!
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*/
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void
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get_mem_used1(int *mem_used)
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{
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char cmd[NC_MAX_NAME + 1];
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char blob[MAX_LEN + 1] = "";
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FILE *fp;
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int num_char;
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/* Run the ps command for this process, putting output (one number)
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* into file TMP_FILE_NAME. */
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sprintf(cmd, "ps -o size= %d > %s", getpid(), TMP_FILE_NAME);
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system(cmd);
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/* Read the results and delete temp file. */
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if (!(fp = fopen(TMP_FILE_NAME, "r"))) ERR;
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num_char = fread(blob, MAX_LEN, 1, fp);
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sscanf(blob, "%d", mem_used);
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fclose(fp);
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unlink(TMP_FILE_NAME);
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}
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int
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main(int argc, char **argv)
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{
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#define BUFSIZE 1000000 /* access data in megabyte sized pieces */
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#define THETAU_FILE "/machine/downloads/AR5_sample_data/thetao_O1.SRESA1B_2.CCSM.ocnm.2000-01_cat_2099-12.nc"
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#define NDIMS_DATA 4
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printf("\n*** Running some AR-5 benchmarks.\n");
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printf("*** testing various chunksizes for thetau file...\n");
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{
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int ncid, ncid_out;
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/*char var_buf[BUFSIZE];*/ /* buffer for variable data */
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/* nciter_t iter; */ /* opaque structure for iteration status */
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/* size_t start[NDIMS_DATA];
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size_t count[NDIMS_DATA];*/
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/*float *data = (float *)var_buf; */
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char file_out[NC_MAX_NAME + 1];
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/*int ndims, nvars, natts, unlimdimid;*/
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size_t cs[NDIMS_DATA] = {120, 4, 40, 32};
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/* nc_set_log_level(4); */
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/* /\* Open input. *\/ */
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/* if (nc_open(THETAU_FILE, NC_NOWRITE, &ncid)) ERR; */
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/* /\* Create output file. *\/ */
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/* sprintf(file_out, "thetau_%d_%d_%d_%d.nc", (int)cs[0], */
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/* (int)cs[1], (int)cs[2], (int)cs[3]); */
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/* if (nc_create(file_out, NC_NOWRITE, &ncid_out)) ERR; */
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/* /\* Copy the easy ones. *\/ */
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/* /\* if (nc_inq(ncid, &ndims, &nvars, &natts, &unlimdimid)) ERR; */
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/* if (ndims != 5 || nvars != 9 || natts != 8 || unlimdimid != 0) ERR;*\/ */
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/* /\* /\\* Copy the main data payload with Russ's new nciters. *\\/ *\/ */
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/* /\* varid = 8; *\/ */
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/* /\* if (nc_get_iter(ncid, varid, BUFSIZE, &iter)) ERR; *\/ */
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/* /\* while((nvals = nc_next_iter(&iter, start, count)) > 0) *\/ */
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/* /\* { *\/ */
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/* /\* /\\* read in a block of data *\\/ *\/ */
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/* /\* if (nc_get_vara_double(ncid, varid, start, count, data)) ERR; *\/ */
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/* /\* /\\* now write the changed data back out *\\/ *\/ */
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/* /\* if (nc_out_vara_double(ncid, varid, start, count, data)) ERR; *\/ */
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/* /\* } *\/ */
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/* /\* if (nvals < 0) ERR; *\/ */
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/* if (nc_close(ncid)) ERR; */
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/* if (nc_close(ncid_out)) ERR; */
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}
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SUMMARIZE_ERR;
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FINAL_RESULTS;
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}
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