Reduce temporarily steps to buffer (#131)

Add option to change number of mindelays that we used for buffering with reportinglib

Author: ferdonline

coreneuron/nrniv/main1.cpp

@@ -408,6 +408,10 @@ extern "C" int solve_core(int argc, char** argv) {
 
         // register all reports into reportinglib
         double min_report_dt = INT_MAX;
+        int num_report_mindelay = nrnopt_get_int("--num-report-mindelay");
+
+        set_num_mindelay_to_buffer(num_report_mindelay);
+
         for (size_t i = 0; i < configs.size(); i++) {
             register_report(dt, tstop, delay, configs[i]);
             if (configs[i].report_dt < min_report_dt) {

coreneuron/nrniv/nrnoptarg.cpp

@@ -71,6 +71,7 @@ static param_int param_int_args[] = {
     {"--extracon -x", 0, 0, 10000000,
      "Number of extra random connections in each thread to other duplicate models (int)."},
     {"--seed -s", -1, 0, 100000000, "Initialization seed for random number generator (int)."},
+    {"--num-report-mindelay", 100, 1, 10000, "Number of min delay intervals to be buffered during reporting (int)."},
     {NULL, 0, 0, 0, NULL}};
 
 static param_dbl param_dbl_args[] = {

coreneuron/utils/reports/nrnreport.cpp

@@ -351,7 +351,7 @@ std::vector<int> map_gids(NrnThread& nt) {
 #endif  // ENABLE_REPORTING
 
 // number of min-delay intervals to buffer
-static int num_min_delay_to_buffer = 500;
+static int num_min_delay_to_buffer = 100;
 
 /// number of min-delays completed since last flush
 static int num_min_delays_completed = 0;
@@ -386,6 +386,12 @@ void setup_report_engine(double dt_report, double mindelay) {
 #endif  // ENABLE_REPORTING
 }
 
+// number of min delay intervals that will be buffered with reports
+// @todo : this will be replaced by buffer size in MB
+void set_num_mindelay_to_buffer(int n) {
+    num_min_delay_to_buffer = n;
+}
+
 // TODO: we can have one ReportEvent per register_report_call generated by MPI rank
 // instead of one per cell group
 void register_report(double dt, double tstop, double delay, ReportConfiguration& report) {

coreneuron/utils/reports/nrnreport.h

@@ -78,5 +78,7 @@ std::vector<ReportConfiguration> create_report_configurations(const char* filena
 void setup_report_engine(double dt_report, double mindelay);
 void finalize_report();
 void nrn_flush_reports(double t);
+void set_num_mindelay_to_buffer(int n);
+
 }  // namespace coreneuron
 #endif  //_H_NRN_REPORT_