ModSim ass4 taddeus: Added comparison script.

modsim/ass4_taddeus/ring/report/Makefile

@@ -5,4 +5,4 @@ report.pdf: report.tex
 	pdflatex $^
 
 clean:
-	rm *.pdf *.log *.aux
+	rm report.pdf *.log *.aux

modsim/ass4_taddeus/vibstring/compare.sh

+#!/bin/bash
+if [ $# -lt 1 ]; then
+    echo "Usage: bash $0 NUM_PROCESSES"
+    exit 1
+fi
+
+REPEAT=4
+FILE=compare.txt
+
+# Clear results file
+echo "" > $FILE
+
+# Execute parallel program for different numbers of nodes
+for (( i = 900; i <= 900000; i += 10000 )); do
+    dx=`echo "1/$i" | bc -l`
+    args="sinus 10000 1 $dx 1 2"
+
+    for j in `seq $REPEAT`; do
+        echo $i >> $FILE
+        /usr/bin/time -f "%e" -ao $FILE ./seq $args
+        /usr/bin/time -f "%e" -ao $FILE ./par.sh $1 $args
+    done
+done

modsim/ass4_taddeus/vibstring/par.c

@@ -4,7 +4,7 @@
 #include <math.h>
 #include <mpi.h>
 
-#define VERBOSE
+//#define VERBOSE
 
 double **y = NULL;
 int tasks, rank, steps, start;

modsim/ass4_taddeus/vibstring/seq.c

@@ -3,7 +3,7 @@
 #include <string.h>
 #include <math.h>
 
-#define VERBOSE
+//#define VERBOSE
 
 double **y = NULL, dx;
 int steps, time;
@@ -60,7 +60,6 @@ void print(int state) {
  * time steps.
  */
 void calculate_steps(int time, double tau) {
-    double x;
     int i, t, prev = 0, current = 1, next = 2;
 
     // Calculate the position over the entire string at time dt using the