logo

src/file_utils.h

@@ -17,6 +17,7 @@
 #include <algorithm> 
 #include <iterator>
 #include "ini.h"
+#include "miscellaneous.h"
 
 namespace file_utils
 {

src/kernels.cu

@@ -29,7 +29,7 @@ __device__ __forceinline__ void dephase_relax(float *m0, float *m1, float accumu
 
 __global__ void cu_sim(const simulation_parameters *param, const float *pFieldMap, const uint8_t *pMask, const float *M0, const float *XYZ0, float *M1, float *XYZ1)
 {
-    uint32_t spin_no = blockIdx.x * blockDim.x + threadIdx.x ;
+    auto spin_no = blockIdx.x * blockDim.x + threadIdx.x ;
     if (spin_no >= param->n_spins)
         return;
 
@@ -181,13 +181,13 @@ __global__ void cu_scalePos(float *scaled_xyz, float *initial_xyz, float scale,
 //---------------------------------------------------------------------------------------------
 __global__ void cu_scaleArray(float *array, float scale, uint64_t size)
 {
-    uint64_t n = blockIdx.x * blockDim.x + threadIdx.x ;
+    auto n = blockIdx.x * blockDim.x + threadIdx.x ;
     if(n < size)
         array[n] *= scale;
 }
 
 //---------------------------------------------------------------------------------------------
-// generate random initial position
+// CUDA kernel to generate random initial position
 //---------------------------------------------------------------------------------------------
 
 __global__ void cu_randPosGen(float *spin_position_xyz, simulation_parameters *param, const uint8_t *pMask, uint32_t spin_no)
@@ -215,7 +215,7 @@ __global__ void cu_randPosGen(float *spin_position_xyz, simulation_parameters *p
 }
 
 //---------------------------------------------------------------------------------------------
-//  
+//  check for CUDA and GPU device
 //---------------------------------------------------------------------------------------------
 void print_device_info()
 {

src/miscellaneous.h

@@ -114,5 +114,15 @@ typedef struct simulation_parameters
 } simulation_parameters;
 
 
+inline void print_logo()
+{ 
+  std::cout << " \n"
+" ____            _          __        __          _   _        \n"
+"/ ___|   _ __   (_)  _ __   \\ \\      / /   __ _  | | | | __    \n"
+"\\___ \\  | '_ \\  | | | '_ \\   \\ \\ /\\ / /   / _` | | | | |/ /    \n"
+" ___) | | |_) | | | | | | |   \\ V  V /   | (_| | | | |   <     \n"
+"|____/  | .__/  |_| |_| |_|    \\_/\\_/     \\__,_| |_| |_|\\_\\    \n"
+"        |_|                                                    \n\n";
+}
 
 #endif // __MISCELLANEOUS_H__

src/spinwalk.cu

@@ -218,6 +218,7 @@ bool simulate(simulation_parameters param, std::map<std::string, std::vector<std
 
 int main(int argc, char * argv[])
 {
+    print_logo();
     std::cout << "SpinWalk ver. " << SPINWALK_VERSION_MAJOR << "." << SPINWALK_VERSION_MINOR << "." << SPINWALK_VERSION_PATCH << std::endl;
     // ========== parse command line arguments ==========
     std::vector<std::string> config_files;