From a3886552003d031acb9039e920b7c9ddce946ad6 Mon Sep 17 00:00:00 2001
From: Joshua Bakita <jbakita@cs.unc.edu>
Date: Sat, 17 Oct 2020 14:43:46 -0400
Subject: DIS fixes used for (rejected) RTSS'20 submission

- All: Output times to stderr and nothing to stdout
- Field, Update, Pointer: change definition of a job to match other
  stressmark execution times more closely
- Matrix: move all allocations into main()
- Update: Use volatile to prevent computations from being optimized out
- Transitive: Use volatile to prevent computations from being optimized out
- Neighborhood: Use working version of drawLineSegment from original DIS
  sample code
---
 dis/Pointer/pointer.c | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

(limited to 'dis/Pointer/pointer.c')

diff --git a/dis/Pointer/pointer.c b/dis/Pointer/pointer.c
index 5671697..3fc7248 100644
--- a/dis/Pointer/pointer.c
+++ b/dis/Pointer/pointer.c
@@ -38,19 +38,19 @@
 int main(int argc, char** argv){
 
   unsigned int *field;
-  unsigned int f;
+  unsigned long f;
   unsigned short int w;
-  unsigned int maxhops;
-  int seed;
+  unsigned long maxhops;
+  long seed;
   unsigned int n;
 
-  clock_t startTime;
+  clock_t startTime, endTime;
 
   struct threadS{
-    unsigned int initial;
-    unsigned int minStop;
-    unsigned int maxStop;
-    unsigned int hops;
+    unsigned long initial;
+    unsigned long minStop;
+    unsigned long maxStop;
+    unsigned long hops;
   }*thread;
 
   unsigned int l;
@@ -72,7 +72,7 @@ int main(int argc, char** argv){
    return (-1);
 
  for (l=0; l<n; l++){
-   assert(fscanf(stdin, "%lu %lu %lu", 
+   assert(fscanf(stdin, "%lu %lu %lu",
 	  &(thread[l].initial), &(thread[l].minStop), &(thread[l].maxStop)) == 3);
    assert ((thread[l].initial >= 0) && (thread[l].initial < f));
    assert ((thread[l].minStop >= 0) && (thread[l].minStop < f));
@@ -89,9 +89,9 @@ int main(int argc, char** argv){
 startTime = time(NULL);
 clock();
 
+START_LOOP
 for (l=0; l<n; l++)
 {
- START_LOOP
  unsigned int index;
  unsigned int minStop, maxStop;
  unsigned int hops;
@@ -142,16 +142,18 @@ for (l=0; l<n; l++)
   hops++;
  }/* end loop ll */
   thread[l].hops = hops;
- STOP_LOOP
 } /* end while */
+STOP_LOOP
 
- startTime = time(NULL) - startTime;
+ endTime = time(NULL);
 
- for (l=0; l<n; l++){
+ volatile int _stop_optimizer = thread[l].hops + l;
+ /*for (l=0; l<n; l++){
   fprintf(stdout, "%lu hops on thread %d\n", thread[l].hops, l);
- }
+ }*/
 
- fprintf(stderr, "total time = %u seconds.\n", (unsigned int)startTime);
+ fprintf(stderr, "time for pointer stressmark = %f seconds.\n",
+         difftime(endTime, startTime));
  free (field);
  free (thread);
  WRITE_TO_FILE
-- 
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