Changeset 561 for trunk/kernel/kern/cluster.c

Timestamp:

Sep 21, 2018, 10:26:47 PM (5 years ago)

Author:

nicolas.van.phan@…

Message:

Remove y_max in all functions except dqdt_init()

File:

• trunk/kernel/kern/cluster.c (modified) (2 diffs)

trunk/kernel/kern/cluster.c

@@ -45 +45 @@
 #include <process.h>
 #include <dqdt.h>
+#include <cluster_info.h>
 
 /////////////////////////////////////////////////////////////////////////////////////
@@ -212 +213 @@
 } // end cluster_init()
 
+/////////////////////////////////
+cxy_t cluster_random_select( void )
+{
+    uint32_t  x_size;
+    uint32_t  y_size;
+    uint32_t  y_width;
+    uint32_t  index;
+    uint32_t  x;
+    uint32_t  y;
+
+    do {
+        x_size     = LOCAL_CLUSTER->x_size;
+        y_size     = LOCAL_CLUSTER->y_size;
+        y_width   = LOCAL_CLUSTER->y_width;
+        index     = ( hal_get_cycles() + hal_get_gid() ) % (x_size * y_size);
+        x         = index / y_size;
+        y         = index % y_size;
+    } while ( cluster_info_is_active( LOCAL_CLUSTER->cluster_info[x][y] ) == 0 );
+
+    return (x<<y_width) + y;
+}
+
 ////////////////////////////////////////
 bool_t cluster_is_undefined( cxy_t cxy )