From 49981c5ddda35e6defd63d860bccfbc66e7158ca Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@fe.uni-lj.si>
Date: Thu, 02 Jun 2016 10:13:11 +0000
Subject: [PATCH] ConstVol and ConstArea area+volume are now also in the snapshost. Fix in timing of writting the .status file to the disk.

---
 src/timestep.c |   45 +++++++++++++++++++++++++++++++++++----------
 1 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/src/timestep.c b/src/timestep.c
index 315c1d1..9f40e1c 100644
--- a/src/timestep.c
+++ b/src/timestep.c
@@ -1,3 +1,4 @@
+/* vim: set ts=4 sts=4 sw=4 noet : */
 #include<stdlib.h>
 #include<stdio.h>
 #include<math.h>
@@ -15,30 +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,kc2,kc3,kc4;
+	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");	
 
 	}
 
@@ -50,8 +65,12 @@
 	cell_occupation(vesicle);
 	vesicle_volume(vesicle); //needed for constant volume at this moment
     vesicle_area(vesicle); //needed for constant area at this moment
-	V0=vesicle->volume; 
-    A0=vesicle->area;
+	if(V0<0.000001) 
+		V0=vesicle->volume; 
+	ts_fprintf(stdout,"Setting volume V0=%.17f\n",V0);
+	if(A0<0.000001)
+		A0=vesicle->area;
+		ts_fprintf(stdout,"Setting area A0=%.17f\n",A0);
 	epsvol=4.0*sqrt(2.0*M_PI)/pow(3.0,3.0/4.0)*V0/pow(vesicle->tlist->n,3.0/2.0);
     epsarea=A0/(ts_double)vesicle->tlist->n;
   //  fprintf(stderr, "DVol=%1.16f (%1.16f), V0=%1.16f\n", epsvol,0.003e-2*V0,V0);
@@ -73,7 +92,6 @@
 		bfsr/=(ts_double)mcsweeps;
 		centermass(vesicle);
 		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);
 		if(i>=inititer){
 			write_vertex_xml_file(vesicle,i-inititer);
@@ -125,7 +143,14 @@
 		    fflush(fd);	
 		//	sprintf(filename,"timestep-%05d.pov",i-inititer);
 		//	write_pov_file(vesicle,filename);
+		} //end if(inititer....)
+		fd3=fopen(".status","w"); //write status file when everything is written to disk.
+		if(fd3==NULL){
+			fatal("Cannot open .status file for writing",1);
 		}
+		fprintf(fd3,"%d",i);
+		fclose(fd3);
+		ts_fprintf(stdout,"Done %d out of %d iterations (x %d MC sweeps).\n",i+1,inititer+iterations,mcsweeps);
 	}
 	fclose(fd);
 	if(fd2!=NULL) fclose(fd2);

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