ncint performance test

tests/ncint/Makefile.am

@@ -8,19 +8,21 @@ AM_CPPFLAGS = -I$(top_srcdir)/src/clib
 LDADD = ${top_builddir}/src/clib/libpioc.la
 
 # Build the test for make check.
-check_PROGRAMS = tst_pio_udf tst_pio_async tst_async_multi
+check_PROGRAMS = tst_pio_udf tst_pio_async tst_async_multi	\
+tst_ncint_perf
 
 tst_pio_udf_SOURCES = tst_pio_udf.c pio_err_macros.h
 tst_pio_async_SOURCES = tst_pio_async.c pio_err_macros.h
 tst_async_multi_SOURCES = tst_async_multi.c pio_err_macros.h
+tst_ncint_perf_SOURCES = tst_ncint_perf.c pio_err_macros.h
 
 if RUN_TESTS
 # Tests will run from a bash script.
-TESTS = run_tests.sh
+TESTS = run_tests.sh run_perf.sh
 endif # RUN_TESTS
 
 # Distribute the test script.
-EXTRA_DIST = run_tests.sh
+EXTRA_DIST = run_tests.sh run_perf.sh
 
 # Clean up files produced during testing.
 CLEANFILES = *.nc *.log

tests/ncint/pio_err_macros.h

@@ -61,4 +61,6 @@ static int total_err = 0, err = 0;
         return 0;                                               \
     } while (0)
 
+#define ERR_WRONG 99
+
 #endif /* _PIO_ERR_MACROS_H */

tests/ncint/run_perf.sh

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# This is a test script for PIO. It runs performance tests for the
+# netCDF intergration of PIO.
+
+# Ed Hartnett
+
+# Stop execution of script if error is returned.
+set -e
+
+# Stop loop if ctrl-c is pressed.
+trap exit INT TERM
+
+printf 'running PIO performance tests...\n'
+
+PIO_TESTS='tst_ncint_perf'
+
+success1=true
+for TEST in $PIO_TESTS
+do
+    success1=false
+    echo "running ${TEST}"
+    mpiexec -n 4 ./${TEST} && success1=true
+    if test $success1 = false; then
+        break
+    fi
+done
+
+# Did we succeed?
+if test x$success1 = xtrue; then
+    exit 0
+fi
+exit 1

tests/ncint/tst_ncint_perf.c

@@ -0,0 +1,185 @@
+/* Test netcdf integration layer.
+
+   This is a performance test of async mode in PIO, using the netCDF
+   integration layer.
+
+   Ed Hartnett
+   12/2/19
+*/
+
+#include "config.h"
+#include <pio.h>
+#include <sys/time.h>
+#include "pio_err_macros.h"
+
+#define FILE_NAME "tst_pio_async.nc"
+#define VAR_NAME "data_var"
+#define DIM_NAME_UNLIMITED "dim_unlimited"
+#define DIM_NAME_X "dim_x"
+#define DIM_NAME_Y "dim_y"
+#define DIM_LEN_X 3
+#define DIM_LEN_Y 4
+#define NDIM2 2
+#define NDIM3 3
+#define NUM_TIMESTEPS 1
+
+extern NC_Dispatch NCINT_dispatcher;
+
+/* Number of computational components to create. */
+#define COMPONENT_COUNT 1
+
+int
+main(int argc, char **argv)
+{
+    int my_rank;
+    int ntasks;
+
+    /* Initialize MPI. */
+    if (MPI_Init(&argc, &argv)) PERR;
+
+    /* Learn my rank and the total number of processors. */
+    if (MPI_Comm_rank(MPI_COMM_WORLD, &my_rank)) PERR;
+    if (MPI_Comm_size(MPI_COMM_WORLD, &ntasks)) PERR;
+
+    if (!my_rank)
+        printf("\n*** Testing netCDF integration PIO performance.\n");
+    if (!my_rank)
+        printf("*** testing simple async use of netCDF integration layer...");
+    {
+        int ncid, ioid;
+        int dimid[NDIM3], varid;
+        int dimlen[NDIM3] = {NC_UNLIMITED, DIM_LEN_X, DIM_LEN_Y};
+        int iosysid;
+        size_t elements_per_pe;
+        size_t *compdof; /* The decomposition mapping. */
+        int *my_data;
+        int *data_in;
+        int num_procs2[COMPONENT_COUNT] = {3};
+        int num_io_procs = 1;
+        int i;
+
+        /* Turn on logging for PIO library. */
+        /* PIOc_set_log_level(4); */
+        /* if (!my_rank) */
+        /*     nc_set_log_level(3); */
+
+        /* Initialize the intracomm. The IO task will not return from
+         * this call until the PIOc_finalize() is called by the
+         * compute tasks. */
+        if (nc_def_async(MPI_COMM_WORLD, num_io_procs, NULL, COMPONENT_COUNT,
+                         num_procs2, NULL, NULL, NULL, PIO_REARR_BOX, &iosysid))
+            PERR;
+
+        if (my_rank)
+        {
+            struct timeval starttime, endtime;
+            long long startt, endt;
+            long long delta;
+            float num_megabytes = 0;
+            float delta_in_sec;
+            float mb_per_sec;
+
+            /* Start the clock. */
+            gettimeofday(&starttime, NULL);
+
+            /* Create a file with a 3D record var. */
+            if (nc_create(FILE_NAME, NC_PIO|NC_NETCDF4, &ncid)) PERR;
+            if (nc_def_dim(ncid, DIM_NAME_UNLIMITED, dimlen[0], &dimid[0])) PERR;
+            if (nc_def_dim(ncid, DIM_NAME_X, dimlen[1], &dimid[1])) PERR;
+            if (nc_def_dim(ncid, DIM_NAME_Y, dimlen[2], &dimid[2])) PERR;
+            if (nc_def_var(ncid, VAR_NAME, NC_INT, NDIM3, dimid, &varid)) PERR;
+            if (nc_enddef(ncid)) PERR;
+
+            /* Calculate a decomposition for distributed arrays. */
+            elements_per_pe = DIM_LEN_X * DIM_LEN_Y / (ntasks - num_io_procs);
+            /* printf("my_rank %d elements_per_pe %ld\n", my_rank, elements_per_pe); */
+            if (!(compdof = malloc(elements_per_pe * sizeof(size_t))))
+                PERR;
+            for (i = 0; i < elements_per_pe; i++)
+            {
+                compdof[i] = (my_rank - num_io_procs) * elements_per_pe + i;
+                /* printf("my_rank %d compdof[%d]=%ld\n", my_rank, i, compdof[i]); */
+            }
+
+            /* Create the PIO decomposition for this test. */
+            if (nc_def_decomp(iosysid, PIO_INT, NDIM2, &dimlen[1], elements_per_pe,
+                              compdof, &ioid, 1, NULL, NULL)) PERR;
+            free(compdof);
+
+            /* Create some data on this processor. */
+            if (!(my_data = malloc(elements_per_pe * sizeof(int)))) PERR;
+            for (i = 0; i < elements_per_pe; i++)
+                my_data[i] = my_rank * 10 + i;
+
+            /* Write some data with distributed arrays. */
+            if (nc_put_vard_int(ncid, varid, ioid, 0, my_data)) PERR;
+            if (nc_close(ncid)) PERR;
+
+            /* Reopen the file using netCDF integration. */
+            {
+                int ndims, nvars, ngatts, unlimdimid;
+                nc_type xtype_in;
+                char var_name_in[NC_MAX_NAME + 1];
+                char dim_name_in[NC_MAX_NAME + 1];
+                int natts_in;
+                int dimids_in[NDIM3];
+                size_t dim_len_in;
+
+                /* Open the file. */
+                if (nc_open(FILE_NAME, NC_PIO, &ncid)) PERR;
+
+                /* Check the file. */
+                if (nc_inq(ncid, &ndims, &nvars, &ngatts, &unlimdimid)) PERR;
+                if (ndims != 3 || nvars != 1 || ngatts != 0 ||
+                    unlimdimid != 0) PERR;
+                if (nc_inq_var(ncid, 0, var_name_in, &xtype_in, &ndims,
+                               dimids_in, &natts_in)) PERR;
+                if (strcmp(var_name_in, VAR_NAME) || xtype_in != NC_INT || ndims != NDIM3
+                    || dimids_in[0] != 0 || dimids_in[1] != 1 || dimids_in[2] != 2 ||
+                    natts_in != 0) PERR;
+                if (nc_inq_dim(ncid, 0, dim_name_in, &dim_len_in)) PERR;
+                if (strcmp(dim_name_in, DIM_NAME_UNLIMITED) || dim_len_in != 1) PERR;
+                if (nc_inq_dim(ncid, 1, dim_name_in, &dim_len_in)) PERR;
+                if (strcmp(dim_name_in, DIM_NAME_X) || dim_len_in != DIM_LEN_X) PERR;
+                if (nc_inq_dim(ncid, 2, dim_name_in, &dim_len_in)) PERR;
+                if (strcmp(dim_name_in, DIM_NAME_Y) || dim_len_in != DIM_LEN_Y) PERR;
+
+                /* Read distributed arrays. */
+                if (!(data_in = malloc(elements_per_pe * sizeof(int)))) PERR;
+                if (nc_get_vard_int(ncid, varid, ioid, 0, data_in)) PERR;
+
+                /* Check results. */
+                for (i = 0; i < elements_per_pe; i++)
+                    if (data_in[i] != my_data[i]) PERR;
+
+                /* Close file. */
+                if (nc_close(ncid)) PERR;
+
+                /* Free resources. */
+                free(data_in);
+            }
+
+            /* Stop the clock. */
+            gettimeofday(&endtime, NULL);
+
+            /* Compute the time delta */
+            startt = (1000000 * starttime.tv_sec) + starttime.tv_usec;
+            endt = (1000000 * endtime.tv_sec) + endtime.tv_usec;
+            delta = (endt - startt)/NUM_TIMESTEPS;
+            delta_in_sec = (float)delta / 1000000;
+            mb_per_sec = num_megabytes / delta_in_sec;
+            printf("\n%d\t%d\t%d\t%d\t%d\t%8.3f\t%8.1f\t%8.3f\n", ntasks, num_io_procs,
+                   1, 0, 1, delta_in_sec, num_megabytes, mb_per_sec);
+
+            free(my_data);
+            if (nc_free_decomp(ioid)) PERR;
+            if (nc_free_iosystem(iosysid)) PERR;
+        }
+    }
+    if (!my_rank)
+        PSUMMARIZE_ERR;
+
+    /* Finalize MPI. */
+    MPI_Finalize();
+    PFINAL_RESULTS;
+}