diff --git a/apps/laplace.c b/apps/laplace.c
index bd672299..f017f89b 100644
--- a/apps/laplace.c
+++ b/apps/laplace.c
@@ -54,9 +54,12 @@
 //#define FIX 1024
 #define FIX 1
 
-#define USE_SVM 1
-#define MEMTYPE SVM_STRONG
-//#define MEMTYPE SVM_LAZYRELEASE
+#define USE_STRONG	1
+#define USE_LAZYRELEASE	0
+
+#if USE_STRONG && USE_LAZYRELEASE
+#error Please, use only one memory model
+#endif
 
 static inline double pow(double a, int b)
 {
@@ -137,15 +140,19 @@ int laplace(void *arg)
 #endif
 
 	NewValues = (volatile DATA **)kmalloc((N + 2) * sizeof(DATA *));
-#if USE_SVM
-	NewValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), MEMTYPE);
+#if USE_STRONG
+	NewValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), SVM_STRONG);
+#elif USE_LATYRELEASE
+	NewValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), SVM_LAZYRELEASE);
 #else
 	NewValues[0] = (DATA *) kmalloc((N + 2) * (M + 2) * sizeof(DATA));
 #endif
 
 	OldValues = (volatile DATA **)kmalloc((N + 2) * sizeof(DATA *));
-#if USE_SVM
-	OldValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), MEMTYPE);
+#if USE_STRONG
+	OldValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), SVM_STRONG);
+#elif USE_LATYRELEASE
+	OldValues[0] = (DATA *) svmmalloc((N + 2) * (M + 2) * sizeof(DATA), SVM_LAZYRELEASE);
 #else
 	OldValues[0] = (DATA *) kmalloc((N + 2) * (M + 2) * sizeof(DATA));
 #endif
@@ -171,8 +178,11 @@ int laplace(void *arg)
 		int height = N + 2;
 		int width = M + 2;
 
-		if (my_rank == 0) {
+		/*if (my_rank == 0) {
 			for (i = 0; i < N + 2; i++) {
+				for (j = 0; j < M + 2; j++) {*/
+		{
+			for (i = I; i < I + n + 2; i++) {
 				for (j = 0; j < M + 2; j++) {
 
 					double X = (((double)j / (double)width) * 5.0) - 2.5;
@@ -186,20 +196,14 @@ int laplace(void *arg)
 					else if (Z > 0.0)
 						Z = 0.0;
 
-					NewValues[i][j] = (DATA) ((Z) * 255.0) * FIX;
+					OldValues[i][j] = NewValues[i][j] = (DATA) ((Z) * 255.0) * FIX;
 
 					//if(NewValues[i][j] < 0) NewValues[i][j] = 0;
 				}
 			}
-
-			for (i = 0; i < N + 2; i++) {
-				for (j = 0; j < M + 2; j++) {
-					OldValues[i][j] = NewValues[i][j];
-				}
-			}
 		}
 
-#if USE_SVM
+#if USE_LAZYRELEASE
 		svm_flush();
 		svm_invalidate();
 #endif
@@ -219,12 +223,6 @@ int laplace(void *arg)
 			for (i = 1; i < n + 1; i++) {
 // over all rows
 				for (j = 1; j < m + 1; j++) {
-#if !USE_SVM
-					if (j % CACHE_LINE == 1) {
-						asm volatile ("movl %0, %%eax" :: "r"(&(NewValues[I + i][J + j])) : "%eax");
-					}
-#endif
-
 #if 1
 					NewValues[I + i][J + j] =
 					    (OldValues[I + i - 1][J + j] +
@@ -238,7 +236,7 @@ int laplace(void *arg)
 #endif
 				}
 			}
-#if USE_SVM
+#if USE_LAZYRELEASE
 			svm_flush();
 			svm_invalidate();
 #endif
@@ -247,8 +245,8 @@ int laplace(void *arg)
 			NewValues = OldValues;
 			OldValues = tmp;
 
-			RCCE_TNS_barrier(&RCCE_COMM_WORLD);
-			//RCCE_barrier(&RCCE_COMM_WORLD);
+			//RCCE_TNS_barrier(&RCCE_COMM_WORLD);
+			RCCE_barrier(&RCCE_COMM_WORLD);
 
 #ifdef _USE_GFX
 			if ((my_rank == 0) && (t % 50 == 0)) {
@@ -281,7 +279,7 @@ int laplace(void *arg)
 
 		kprintf("Calculation time: %llu ms (%llu ticks)\n", (end-start)/(1000ULL*get_cpu_frequency()), end-start);
 
-#if USE_SVM
+#if USE_STRONG || USE_LAZYRELEASE
 		svm_statistics();
 #endif
 	}
diff --git a/apps/scc_bootinfo.asm b/apps/scc_bootinfo.asm
new file mode 100644
index 00000000..e69de29b