Changeset 629 for trunk/user/sort/sort.c

Timestamp:

May 17, 2019, 9:27:04 AM (5 years ago)

Author:

alain

Message:

Remove the "giant" rwlock protecting the GPT, and
use the GPT_LOCKED attribute in each PTE to prevent
concurrent modifications of one GPT entry.
The version number has been incremented to 2.1.

File:

• trunk/user/sort/sort.c (modified) (4 diffs)

trunk/user/sort/sort.c

@@ -29 +29 @@
 #include <hal_macros.h>
 
-#define ARRAY_LENGTH        1024       // number of items
+#define ARRAY_LENGTH        4096       // number of items
 #define MAX_THREADS         1024       // 16 * 16 * 4
 
@@ -423 +423 @@
 
 #if CHECK_RESULT
-   
     int    success = 1;
     int *  res_array = ( (total_threads ==   2) ||
@@ -444 +443 @@
     if ( success ) printf("\n[sort] success\n");
     else           printf("\n[sort] failure\n");
-
 #endif
 
 #if INSTRUMENTATION
-
     char               name[64];
     char               path[128];
     unsigned long long instru_cycle;
 
-    // build a file name from n_items / n_clusters / n_cores
-    if( USE_DQT_BARRIER ) snprintf( name , 64 , "sort_dqt_%d_%d_%d", 
-                          ARRAY_LENGTH, x_size * y_size, ncores );
-    else                  snprintf( name , 64 , "sort_smp_%d_%d_%d", 
-                          ARRAY_LENGTH, x_size * y_size, ncores );
+    // build file name 
+    if( USE_DQT_BARRIER )
+    snprintf( name , 64 , "sort_dqt_%d_%d_%d", ARRAY_LENGTH, x_size * y_size, ncores );
+    else
+    snprintf( name , 64 , "sort_smp_%d_%d_%d", ARRAY_LENGTH, x_size * y_size, ncores );
 
     // build file pathname
@@ -471 +468 @@
            " - parallel   : %d cycles\n", 
            name, sequencial, parallel );
-
-#if IDBG
-idbg();
-#endif
 
     // open file