tentative fix

gridder_cxx.h

@@ -894,16 +894,17 @@ template<typename T, typename T2=complex<T>> class Helper
 
       int idxu = (bu0+nu)%nu;
       int idxv0 = (bv0+nv)%nv;
+#pragma omp critical(gridder_writing_to_grid)
       for (int iu=0; iu<su; ++iu)
         {
         int idxv = idxv0;
-        locks[idxu].lock();
+//        locks[idxu].lock();
         for (int iv=0; iv<sv; ++iv)
           {
           grid_w[idxu*nv + idxv] += wbuf[iu*sv + iv];
           if (++idxv>=nv) idxv=0;
           }
-        locks[idxu].unlock();
+//        locks[idxu].unlock();
         if (++idxu>=nu) idxu=0;
         }
       }