diff --git a/examples_cuda/cuda_ispc.h b/examples_cuda/cuda_ispc.h
index 7b034411..e143d90d 100644
--- a/examples_cuda/cuda_ispc.h
+++ b/examples_cuda/cuda_ispc.h
@@ -151,7 +151,8 @@ static CUmodule loadModule(
 #endif
   {
     // Load the PTX from the string myPtx (64-bit)
-    fprintf(stderr, "Loading ptx..\n");
+    if (print_log)
+      fprintf(stderr, "Loading ptx..\n");
     myErr = cuLinkAddData(*lState, CU_JIT_INPUT_PTX, (void*)module, strlen(module)+1, 0, 0, 0, 0);
     myErr = cuLinkAddFile(*lState, CU_JIT_INPUT_LIBRARY, cudadevrt_lib, 0,0,0); 
     // PTX May also be loaded from file, as per below.
@@ -177,7 +178,8 @@ static CUmodule loadModule(
 
  // Destroy the linker invocation
  checkCudaErrors(cuLinkDestroy(*lState));
- fprintf(stderr, " loadModule took %g ms \n", 1e3*(rtc() - t0));
+ if (print_log)
+   fprintf(stderr, " loadModule took %g ms \n", 1e3*(rtc() - t0));
  return cudaModule;
 }
 static void unloadModule(CUmodule &cudaModule)
diff --git a/examples_cuda/options/options.cpp b/examples_cuda/options/options.cpp
index 597218e3..6aad3dc6 100644
--- a/examples_cuda/options/options.cpp
+++ b/examples_cuda/options/options.cpp
@@ -143,6 +143,7 @@ int main(int argc, char *argv[]) {
     // Binomial options, serial implementation
     //
     double binomial_serial = 1e30;
+#if 0
     for (int i = 0; i < 3; ++i) {
         reset_and_start_timer();
         const double t0 = rtc();
@@ -159,6 +160,7 @@ int main(int argc, char *argv[]) {
 
     printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n",
            binomial_serial / binomial_ispc, binomial_serial / binomial_tasks);
+#endif
 
     //
     // Black-Scholes options pricing model, ispc implementation, 1 thread
@@ -200,6 +202,7 @@ int main(int argc, char *argv[]) {
     // Black-Scholes options pricing model, serial implementation
     //
     double bs_serial = 1e30;
+#if 0
     for (int i = 0; i < 3; ++i) {
         reset_and_start_timer();
         const double t0 = rtc();
@@ -216,6 +219,7 @@ int main(int argc, char *argv[]) {
 
     printf("\t\t\t\t(%.2fx speedup from ISPC, %.2fx speedup from ISPC + tasks)\n", 
            bs_serial / bs_ispc, bs_serial / bs_ispc_tasks);
+#endif
 
     return 0;
 }
diff --git a/examples_cuda/options/options.ispc b/examples_cuda/options/options.ispc
index 8cf69cf5..57af076b 100644
--- a/examples_cuda/options/options.ispc
+++ b/examples_cuda/options/options.ispc
@@ -76,10 +76,12 @@ export void
 black_scholes_ispc_tasks(uniform float Sa[], uniform float Xa[], uniform float Ta[],
                          uniform float ra[], uniform float va[], 
                          uniform float result[], uniform int count) {
-    uniform int nTasks = max((int)64, (int)count/16384);
+    uniform int nTasks = 2048; //count/16384; //max((int)64, (int)count/16384);
     launch[nTasks] bs_task(Sa, Xa, Ta, ra, va, result, count);
 }
 
+/********/
+
 
 export void
 black_scholes_ispc(uniform float Sa[], uniform float Xa[], uniform float Ta[],
@@ -149,6 +151,6 @@ binomial_put_ispc_tasks(uniform float Sa[], uniform float Xa[],
                         uniform float Ta[], uniform float ra[], 
                         uniform float va[], uniform float result[], 
                         uniform int count) {
-    uniform int nTasks = max((int)64, (int)count/16384);
+    uniform int nTasks = 2048; //count/16384; //max((int)64, (int)count/16384);
     launch[nTasks] binomial_task(Sa, Xa, Ta, ra, va, result, count);
 }