add information about found GPU's

src/main.cpp

@@ -5,8 +5,8 @@
 #include <iostream>
 #include <limits>
 #include <vector>
+#include <vulkan/vulkan_core.h>
 
-/// TODO: Print available GPU's
 /// TODO: Run benchmark on all GPU's
 /// TODO: Pinned memory
 /// TODO: Plot by buffer size
@@ -21,6 +21,24 @@ VKAPI_ATTR VkBool32 VKAPI_CALL debugCallback(
     return VK_FALSE;
 }
 
+const char *getGpuTypeName(VkPhysicalDeviceType type) {
+    switch (type) {
+    case VK_PHYSICAL_DEVICE_TYPE_OTHER:
+        return "Other";
+    case VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU:
+        return "Integrated GPU";
+    case VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU:
+        return "Discrete GPU";
+    case VK_PHYSICAL_DEVICE_TYPE_VIRTUAL_GPU:
+        return "Virtual GPU";
+    case VK_PHYSICAL_DEVICE_TYPE_CPU:
+        return "CPU";
+    default:
+        return "Invalid Type";
+    }
+    return "Invalid Type";
+}
+
 uint32_t findMemory(VkPhysicalDevice phy, uint32_t typeBits,
                     VkMemoryPropertyFlags props) {
     VkPhysicalDeviceMemoryProperties mem;
@@ -93,9 +111,8 @@ double benchCopy(VkDevice dev, VkCommandPool pool, VkQueue queue, VkBuffer src,
     return std::chrono::duration<double, std::milli>(t1 - t0).count();
 }
 
-// ---------- main ----------
 int main() {
-    // ---- instance ----
+
     VkApplicationInfo app{};
     app.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
     app.pApplicationName = "VulkanTransferBench";
@@ -108,6 +125,8 @@ int main() {
     VkInstance inst;
     vkCreateInstance(&ici, nullptr, &inst);
 
+    std::cout << "Starting benchmark..." << std::endl;
+
     // ---- physical device ----
     uint32_t n = 0;
     vkEnumeratePhysicalDevices(inst, &n, nullptr);
@@ -115,6 +134,20 @@ int main() {
     vkEnumeratePhysicalDevices(inst, &n, gpus.data());
     VkPhysicalDevice phy = gpus[0];
 
+    std::cout << "Found " << gpus.size() << " gpus." << std::endl;
+
+    {
+        std::vector<VkPhysicalDeviceProperties> gpu_properties(n);
+        // Print info
+        for (uint32_t i = 0; i < gpus.size(); i++) {
+            VkPhysicalDeviceProperties *prop = &gpu_properties[i];
+            vkGetPhysicalDeviceProperties(gpus[i], prop);
+
+            std::cout << "GPU: [" << i << "] " << prop->deviceName << " ("
+                      << getGpuTypeName(prop->deviceType) << ")" << std::endl;
+        }
+    }
+
     // ---- logical device ----
     float prio = 1.0f;
     VkDeviceQueueCreateInfo qi{};