Task #5200: try multithreading in gaincal

CEP/DP3/DPPP/src/GainCal.cc

@@ -582,6 +582,7 @@ namespace LOFAR {
             iS.h(st,3)=conj(iS.g(st,3));
           }
 
+#pragma omp parallel for
           for (uint st1=0;st1<nSt;++st1) {
             for (uint time=0;time<solInt;++time) {
               for (uint ch=0;ch<nCh;++ch) {
@@ -641,6 +642,7 @@ namespace LOFAR {
           for (uint st=0;st<nUn;++st) {
             iS.h(st,0)=conj(iS.g(st,0));
           }
+#pragma omp parallel for
           for (uint st1=0;st1<nUn;++st1) {
             ww=0;
             t(0)=0;