From ac9826b40021798ad3c207f526f64950bc293fb2 Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Wed, 01 Jun 2016 15:56:32 +0000
Subject: [PATCH] Statistics.csv and ulm2.dat are being appended if simulations are restarting

---
 src/timestep.c |   32 ++++++++++++++++++++++++++------
 1 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/src/timestep.c b/src/timestep.c
index 9f30dda..df74c43 100644
--- a/src/timestep.c
+++ b/src/timestep.c
@@ -16,30 +16,44 @@
 #include<gsl/gsl_complex.h>
 #include<gsl/gsl_complex_math.h>
 #include<string.h>
+#include <sys/stat.h>
+
 
 ts_bool run_simulation(ts_vesicle *vesicle, ts_uint mcsweeps, ts_uint inititer, ts_uint iterations, ts_uint start_iteration){
 	ts_uint i, j,k,l,m;
 	ts_double r0,kc1=0,kc2=0,kc3=0,kc4=0;
 	ts_double l1,l2,l3,vmsr,bfsr, vmsrt, bfsrt;
 	ts_ulong epochtime;
-	FILE *fd1,*fd2=NULL;
+	FILE *fd1,*fd2=NULL,*fd3=NULL;
  	char filename[10000];
-    strcpy(filename,command_line_args.path);
-    strcat(filename,"statistics.csv");
-	FILE *fd=fopen(filename,"w");
+	//struct stat st;
+	strcpy(filename,command_line_args.path);
+	strcat(filename,"statistics.csv");
+	//int result = stat(filename, &st);
+	FILE *fd;
+	if(start_iteration==0)
+		fd=fopen(filename,"w");
+	else
+		fd=fopen(filename,"a");
 	if(fd==NULL){
 		fatal("Cannot open statistics.csv file for writing",1);
 	}
-	fprintf(fd, "Epoch OuterLoop VertexMoveSucessRate BondFlipSuccessRate Volume Area lamdba1 lambda2 lambda3 Kc(2-9) Kc(6-9) Kc(2-end) Kc(3-6)\n");
+	if(start_iteration==0)
+		fprintf(fd, "Epoch OuterLoop VertexMoveSucessRate BondFlipSuccessRate Volume Area lamdba1 lambda2 lambda3 Kc(2-9) Kc(6-9) Kc(2-end) Kc(3-6)\n");
 
 	 if(vesicle->sphHarmonics!=NULL){
         strcpy(filename,command_line_args.path);
         strcat(filename,"ulm2.csv"); 
+//	int result = stat(filename, &st);
+	if(start_iteration==0)
 		fd2=fopen(filename,"w");
+	else
+		fd2=fopen(filename,"a");
 		if(fd2==NULL){
 			fatal("Cannot open ulm2.csv file for writing",1);
 		}
-		fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	
+		if(start_iteration==0) //file does not exist
+			fprintf(fd2, "Timestep u_00^2 u_10^2 u_11^2 u_20^2 ...\n");	
 
 	}
 
@@ -76,6 +90,12 @@
 		cell_occupation(vesicle);
 		ts_fprintf(stdout,"Done %d out of %d iterations (x %d MC sweeps).\n",i+1,inititer+iterations,mcsweeps);
             dump_state(vesicle,i);
+		fd3=fopen(".status","w");
+		if(fd3==NULL){
+			fatal("Cannot open .status file for writing",1);
+		}
+		fprintf(fd3,"%d",i);
+		fclose(fd3);
 		if(i>=inititer){
 			write_vertex_xml_file(vesicle,i-inititer);
 			write_master_xml_file(command_line_args.output_fullfilename);

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