call omp_set_num_threads once in central place instead in model routines

src/spicelib/analysis/cktsetup.c

@@ -15,7 +15,11 @@ Author: 1985 Thomas L. Quarles
 #include "ngspice/devdefs.h"
 #include "ngspice/sperror.h"
 
-
+#ifdef USE_OMP
+#include <omp.h>
+#include "ngspice/cpextern.h"
+int nthreads;
+#endif
 
 #define CKALLOC(var,size,type) \
     if(size && ((var = TMALLOC(type, size)) == NULL)){\
@@ -58,6 +62,17 @@ CKTsetup(CKTcircuit *ckt)
 
     matrix = ckt->CKTmatrix;
 
+#ifdef USE_OMP
+    if (!cp_getvar("num_threads", CP_NUM, &nthreads))
+        nthreads = 2;
+
+    omp_set_num_threads(nthreads);
+    if (nthreads == 1)
+      printf("OpenMP: %d thread is requested in ngspice\n", nthreads);
+    else
+      printf("OpenMP: %d threads are requested in ngspice\n", nthreads);
+#endif
+
     for (i=0;i<DEVmaxnum;i++) {
 #ifdef HAS_WINDOWS
         SetAnalyse( "Device Setup", 0 );

src/spicelib/devices/bsim3/b3set.c

@@ -17,10 +17,6 @@
 #include "ngspice/sperror.h"
 #include "ngspice/suffix.h"
 
-#ifdef USE_OMP
-#include "ngspice/cpextern.h"
-#endif
-
 #define MAX_EXP 5.834617425e14
 #define MIN_EXP 1.713908431e-15
 #define EXP_THRESHOLD 34.0
@@ -48,7 +44,6 @@ IFuid tmpName;
 #ifdef USE_OMP
 unsigned int idx, InstCount;
 BSIM3instance **InstArray;
-int nthreads;
 #endif
 
 
@@ -1015,14 +1010,6 @@ if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
         }
     }
 #ifdef USE_OMP
-    if (!cp_getvar("num_threads", CP_NUM, &nthreads))
-        nthreads = 2;
-
-    omp_set_num_threads(nthreads);
-    if (nthreads == 1)
-      printf("OpenMP: %d thread is requested in BSIM3\n", nthreads);
-    else
-      printf("OpenMP: %d threads are requested in BSIM3\n", nthreads);
     InstCount = 0;
     model = (BSIM3model*)inModel;
     /* loop through all the BSIM3 device models

src/spicelib/devices/bsim3/bsim3def.h

@@ -16,10 +16,6 @@ File: bsim3def.h
 #include "ngspice/complex.h"
 #include "ngspice/noisedef.h"         
 
-#ifdef USE_OMP
-#include <omp.h>
-#endif
-
 typedef struct sBSIM3instance
 {
     struct sBSIM3model *BSIM3modPtr;

src/spicelib/devices/bsim3soi/b4soidef.h

@@ -24,10 +24,6 @@ File: b4soidef.h
 #include "ngspice/complex.h"
 #include "ngspice/noisedef.h"
 
-#ifdef USE_OMP
-#include <omp.h>
-#endif
-
 typedef struct sB4SOIinstance
 {
     struct sB4SOImodel *B4SOImodPtr;

src/spicelib/devices/bsim3soi/b4soiset.c

@@ -25,10 +25,6 @@
 #include "ngspice/sperror.h"
 #include "ngspice/suffix.h"
 
-#ifdef USE_OMP
-#include "ngspice/cpextern.h"
-#endif
-
 #define SMOOTHFACTOR 0.1
 #define EPSOX 3.453133e-11
 #define EPSSI 1.03594e-10
@@ -60,7 +56,6 @@ double Vbs0t, Qsi;
 #ifdef USE_OMP
 unsigned int idx, InstCount;
 B4SOIinstance **InstArray;
-int nthreads;
 #endif
 
     /*  loop through all the B4SOI device models */
@@ -2698,14 +2693,6 @@ if((here->ptr = SMPmakeElt(matrix,here->first,here->second))==(double *)NULL){\
     }
 
 #ifdef USE_OMP
-    if (!cp_getvar("num_threads", CP_NUM, &nthreads))
-        nthreads = 2;
-
-    omp_set_num_threads(nthreads);
-    if (nthreads == 1)
-        printf("OpenMP: %d thread is requested in B4SOI\n", nthreads);
-    else
-        printf("OpenMP: %d threads are requested in B4SOI\n", nthreads);
     InstCount = 0;
     model = (B4SOImodel*)inModel;
     /* loop through all the B4SOI device models 

src/spicelib/devices/bsim4/b4set.c

@@ -61,7 +61,6 @@ JOB   *job;
 #ifdef USE_OMP
 unsigned int idx, InstCount;
 BSIM4instance **InstArray;
-int nthreads;
 #endif
 
     /* Search for a noise analysis request */
@@ -2547,14 +2546,6 @@ if((here->ptr = SMPmakeElt(matrix,here->first,here->second))==(double *)NULL){\
     }
 
 #ifdef USE_OMP
-    if (!cp_getvar("num_threads", CP_NUM, &nthreads))
-        nthreads = 2;
-
-    omp_set_num_threads(nthreads);
-    if (nthreads == 1)
-        printf("OpenMP: %d thread is requested in BSIM4\n", nthreads);
-    else
-        printf("OpenMP: %d threads are requested in BSIM4\n", nthreads);
     InstCount = 0;
     model = (BSIM4model*)inModel;
     /* loop through all the BSIM4 device models 

src/spicelib/devices/bsim4/bsim4def.h

@@ -28,10 +28,6 @@ Modified by Wenwei Yang, 07/31/2008.
 #include "ngspice/complex.h"
 #include "ngspice/noisedef.h"
 
-#ifdef USE_OMP
-#include <omp.h>
-#endif
-
 typedef struct sBSIM4instance
 {
     struct sBSIM4model *BSIM4modPtr;

src/spicelib/devices/bsim4v6/b4v6set.c

@@ -62,7 +62,6 @@ JOB   *job;
 #ifdef USE_OMP
 unsigned int idx, InstCount;
 BSIM4v6instance **InstArray;
-int nthreads;
 #endif
 
     /* Search for a noise analysis request */
@@ -2395,14 +2394,6 @@ if((here->ptr = SMPmakeElt(matrix, here->first, here->second)) == NULL){\
     } /*  end of loop through all the BSIM4v6 device models */
 
 #ifdef USE_OMP
-    if (!cp_getvar("num_threads", CP_NUM, &nthreads))
-        nthreads = 2;
-
-    omp_set_num_threads(nthreads);
-    if (nthreads == 1)
-        printf("OpenMP: %d thread is requested in BSIM4v6\n", nthreads);
-    else
-        printf("OpenMP: %d threads are requested in BSIM4v6\n", nthreads);
     InstCount = 0;
     model = (BSIM4v6model*)inModel;
     /* loop through all the BSIM4v6 device models 

src/spicelib/devices/bsim4v6/bsim4v6def.h

@@ -27,10 +27,6 @@ Modified by Wenwei Yang, 07/31/2008.
 #include "ngspice/complex.h"
 #include "ngspice/noisedef.h"         
 
-#ifdef USE_OMP
-#include <omp.h>
-#endif
-
 typedef struct sBSIM4v6instance
 {
     struct sBSIM4v6model *BSIM4v6modPtr;