Add default input values for stream-triad-modified-*.cpp and spec-con…st3.cpp so they don't need to take user interaction for inputs by default if no arguments are specified and added default input values for stream-triad-modified-*.cpp and spec-const3.cpp so they don't need to take user interaction for inputs by default if no arguments are specified

Publications/GPU-Opt-Guide/exec-model/vaddsync.cpp

@@ -114,36 +114,57 @@ int main() {
 
   std::cout << "Running on device: "
             << q.get_device().get_info<sycl::info::device::name>() << "\n";
+
+  auto sgsizes = q.get_device().get_info<sycl::info::device::sub_group_sizes>();
+
+  constexpr int sgsize = 16;
+  bool supported = false;
+  std::cout << "Sub-group sizes supported:"; 
+  for (auto sz : sgsizes) {
+    std::cout << " " << sz;
+    if (sz == sgsize) {
+      supported = true;
+    }
+  }
+  std::cout << std::endl;
+
+  if (!supported) {
+    std::cout << "Sub-group size " << sgsize << " is not supported. Please change sgsize to one of the supported sizes"
+              << std::endl;
+    return 0;
+  }
+
+  std::cout << "Using sub-group size " << sgsize << std::endl;
   std::cout << "Vector size: " << a.size() << "\n";
 
   // check results
   Initialize(sum);
-  VectorAdd3<6, 320, 8>(q, a, b, sum, 1);
+  VectorAdd3<6, 320, sgsize>(q, a, b, sum, 1);
 
   for (int i = 0; i < mysize; i++)
     if (sum[i] != 2 * i) {
       std::cout << "add3 Did not match\n";
     }
 
   Initialize(sum);
-  VectorAdd4<6, 320, 8>(q, a, b, sum, 1);
+  VectorAdd4<6, 320, sgsize>(q, a, b, sum, 1);
   for (int i = 0; i < mysize; i++)
     if (sum[i] != 2 * i) {
       std::cout << "add4 Did not match\n";
     }
 
   // group1
   Initialize(sum);
-  VectorAdd3<8, 320, 8>(q, a, b, sum, 10000);
+  VectorAdd3<8, 320, sgsize>(q, a, b, sum, 10000);
   Initialize(sum);
-  VectorAdd4<8, 320, 8>(q, a, b, sum, 10000);
+  VectorAdd4<8, 320, sgsize>(q, a, b, sum, 10000);
   // end group1
 
   // group2
   Initialize(sum);
-  VectorAdd3<24, 224, 8>(q, a, b, sum, 10000);
+  VectorAdd3<24, 224, sgsize>(q, a, b, sum, 10000);
   Initialize(sum);
-  VectorAdd4<24, 224, 8>(q, a, b, sum, 10000);
+  VectorAdd4<24, 224, sgsize>(q, a, b, sum, 10000);
   // end group2
   return 0;
 }

Publications/GPU-Opt-Guide/jitting/spec-const3.cpp

@@ -11,7 +11,7 @@ class SpecializedKernel;
 // Identify the specialization constant.
 constexpr sycl::specialization_id<int> nx_sc;
 
-int main() {
+int main(int argc, char *argv[]) {
   sycl::queue queue;
 
   std::cout << "Running on "
@@ -23,8 +23,13 @@ int main() {
 
     // Application execution stops here asking for input from user
     int Nx;
-    std::cout << "Enter input number ..." << std::endl;
-    std::cin >> Nx;
+    if (argc > 1) {
+      Nx = std::stoi(argv[1]);
+    } else {
+      Nx = 1024;
+    }
+
+    std::cout << "Nx = " << Nx << std::endl;
 
     queue.submit([&](sycl::handler &h) {
       sycl::accessor acc(buf, h, sycl::write_only, sycl::no_init);

Publications/GPU-Opt-Guide/jitting/stream-triad-modified-constant.cpp

@@ -105,9 +105,8 @@ int main(int argc, char *argv[]) {
     array_size = std::stoi(argv[1]);
     inner_loop_size = std::stoi(argv[2]);
   } else {
-    std::cout
-        << "Run as ./<progname> <arraysize in elements> <inner loop size>\n";
-    return 1;
+    array_size = 134217728;
+    inner_loop_size = 10;
   }
   std::cout << "Running with stream size of " << array_size << " elements ("
             << (array_size * sizeof(double)) / (double)1024 / 1024 << "MB)\n";

Publications/GPU-Opt-Guide/jitting/stream-triad-modified-runtime-var.cpp

@@ -105,9 +105,8 @@ int main(int argc, char *argv[]) {
     array_size = std::stoi(argv[1]);
     inner_loop_size = std::stoi(argv[2]);
   } else {
-    std::cout
-        << "Run as ./<progname> <arraysize in elements> <inner loop size>\n";
-    return 1;
+    array_size = 134217728;
+    inner_loop_size = 10;
   }
   std::cout << "Running with stream size of " << array_size << " elements ("
             << (array_size * sizeof(double)) / (double)1024 / 1024 << "MB)\n";

Publications/GPU-Opt-Guide/jitting/stream-triad-modified-spec-const.cpp

@@ -110,9 +110,8 @@ int main(int argc, char *argv[]) {
     array_size = std::stoi(argv[1]);
     inner_loop_size = std::stoi(argv[2]);
   } else {
-    std::cout
-        << "Run as ./<progname> <arraysize in elements> <inner loop size>\n";
-    return 1;
+    array_size = 134217728;
+    inner_loop_size = 10;
   }
   std::cout << "Running with stream size of " << array_size << " elements ("
             << (array_size * sizeof(double)) / (double)1024 / 1024 << "MB)\n";