1d_fd_simple_shear

commit 4d51b11991631dd7cb45ee6395c5288268bab329
parent e700e8e26323a391f374c70d5c659dd8f2420a1c
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date:   Sat,  6 Jul 2019 11:09:08 +0200

Only write intermediate output files to disk if a simulation name is specified

Diffstat:
M
main.c
 | 
7
++++---
M
parameter_defaults.h
 | 
4
+++-

2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/main.c b/main.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <math.h>
 #include <getopt.h>
+#include <string.h>
 
 #include "simulation.h"
 #include "fluid.h"
@@ -17,7 +18,7 @@ usage(void)
 	struct simulation sim = init_sim();
 	printf("%s: %s [OPTIONS] [NAME]\n"
 	        "runs a simulation and outputs state in files prefixed with NAME.\n"
-	        "If NAME is not specified, the default value '%s' is used.\n"
+	        "If NAME is not specified, intermediate output are not written.\n"
 	        "\nOptional arguments:\n"
 	        " -v, --version                   show version information\n"
 	        " -h, --help                      show this message\n"
@@ -49,7 +50,6 @@ usage(void)
 	        " -T, --time-end VAL              simulation end time [s] (default %g)\n"
 	        " -I, --file-interval VAL         interval between output files [s] (default %g)\n",
 	        __func__, PROGNAME,
-	        sim.name,
 	        sim.G,
 	        sim.P_wall,
 	        sim.mu_wall,
@@ -288,7 +288,8 @@ main(int argc, char* argv[])
 		filetimeclock += sim.dt;
 		iter++;
 
-		if (filetimeclock >= sim.file_dt || iter == 0) {
+		if ((filetimeclock >= sim.file_dt || iter == 0) &&
+		    strcmp(sim.name, DEFAULT_SIMULATION_NAME) != 0) {
 			write_output_file(&sim, norm);
 			filetimeclock = 0.0;
 		}
diff --git a/parameter_defaults.h b/parameter_defaults.h
@@ -6,12 +6,14 @@
 #include "arrays.h"
 #include "simulation.h"
 
+#define DEFAULT_SIMULATION_NAME "unnamed_simulation"
+
 /* Simulation settings */
 struct simulation init_sim(void)
 {
     struct simulation sim;
 
-    sprintf(sim.name, "unnamed");
+    sprintf(sim.name, DEFAULT_SIMULATION_NAME);
 
     sim.G = 9.81;