Show compilation/runtime information at VR startup

When VR is started we now show much more information about VR than before. The previous state was quite messy, didn't include much information, and wasn't coherent depending on how the code was compiled. Additionally now the configuration file name is shown when it's loaded. Signed-off-by: Rodrigo Tobar <[email protected]>
pelahi · May 27, 2021 · 8fb8b64 · 8fb8b64
1 parent 600a552
commit 8fb8b64
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Showing 2 changed files with 35 additions and 9 deletions.
diff --git a/src/main.cxx b/src/main.cxx
@@ -10,7 +10,12 @@
     \todo remove array mpi_idlist and mpi_indexlist as these arrays are unnecessary
     \todo alter unbinding/sortbybindingenergy calls since seems a waste of cpu cycles
 */
+#include <algorithm>
+#include <iterator>
+#include <sstream>
+#include <unistd.h>
 
+#include "compilation_info.h"
 #include "stf.h"
 #include "logging.h"
 #include "timer.h"
@@ -34,6 +39,34 @@ void finish_vr(Options &opt)
 #endif
 }
 
+void show_version_info(int argc, char *argv[])
+{
+	LOG_RANK0(info) << "VELOCIraptor git version: " << git_sha1();
+	LOG_RANK0(info) << "VELOCIraptor compiled with: " << vr::get_cxx_flags() << " " << vr::get_macros();
+	LOG_RANK0(info) << "VELOCIraptor was built on: " << vr::get_compilation_date();
+
+	char cwd[PATH_MAX];
+	std::ostringstream os;
+	LOG_RANK0(info) << "VELOCIraptor running at: " << getcwd(cwd, PATH_MAX);
+	std::copy(argv, argv + argc, std::ostream_iterator<char *>(os, " "));
+	LOG_RANK0(info) << "VELOCIraptor started with command line: " << os.str();
+
+	// MPI/OpenMP information
+	LOG_RANK0(info) << "VELOCIratptor MPI support: "
+#ifdef USEMPI
+	<< "yes, " << NProcs << " MPI ranks";
+#else
+	<< "no";
+#endif
+
+	LOG_RANK0(info) << "VELOCIratptor OpenMP support: "
+#ifdef USEOPENMP
+	<< "yes, " << omp_get_max_threads() << " OpenMP threads, OpenMP version " << _OPENMP;
+#else
+	<< "no";
+#endif
+}
+
 int main(int argc,char **argv)
 {
 #ifdef USEMPI
@@ -53,7 +86,6 @@ int main(int argc,char **argv)
     //and this processes' rank is
     MPI_Comm_rank(MPI_COMM_WORLD,&ThisTask);
 
-    if (ThisTask == 0) cout<<"Running VELOCIraptor "<<git_sha1()<<endl;
 #ifdef USEOPENMP
     // Check the threading support level
     if (provided < required)
@@ -78,13 +110,7 @@ int main(int argc,char **argv)
     nthreads=1;
 #endif
 
-#ifdef USEMPI
-    if (ThisTask==0) cout<<"VELOCIraptor/STF running with MPI. Number of mpi threads: "<<NProcs<<endl;
-#endif
-#ifdef USEOPENMP
-    if (ThisTask==0) cout<<"VELOCIraptor/STF running with OpenMP. Number of openmp threads: "<<nthreads<<endl;
-    if (ThisTask==0) cout<<"VELOCIraptor/STF running with OpenMP version "<< _OPENMP << endl;
-#endif
+    show_version_info(argc, argv);
 
 #ifdef SWIFTINTERFACE
     cout<<"Built with SWIFT interface enabled when running standalone VELOCIraptor. Should only be enabled when running VELOCIraptor as a library from SWIFT. Exiting..."<<endl;

diff --git a/src/ui.cxx b/src/ui.cxx
@@ -223,7 +223,7 @@ void GetArgs(int argc, char *argv[], Options &opt)
     }
     if(configflag){
         if (ThisTask==0)
-        LOG(info) << "Reading config file";
+        LOG(info) << "Reading config file " << opt.pname;
         GetParamFile(opt);
     }
     else {