src-M MREMD LANG correction

[unres.git] / source / unres / src_MD-M / MREMD.F

diff --git a/source/unres/src_MD-M/MREMD.F b/source/unres/src_MD-M/MREMD.F
index 493dbb5..96b9109 100644 (file)
--- a/source/unres/src_MD-M/MREMD.F
+++ b/source/unres/src_MD-M/MREMD.F
@@ -1274,6 +1274,18 @@ co     &    " rescaling weights with temperature",t_bath
            stdfsc(i)=dsqrt(2*Rb*t_bath/d_time)
          enddo
 
+c Compute the standard deviations of stochastic forces for Langevin dynamics
+c if the friction coefficients do not depend on surface area
+      if (lang.gt.0 .and. .not.surfarea) then
+        do i=nnt,nct-1
+          stdforcp(i)=stdfp*dsqrt(gamp)
+        enddo
+        do i=nnt,nct
+          if (itype(i).ne.ntyp1) stdforcsc(i)=stdfsc(iabs(itype(i)))
+     &                *dsqrt(gamsc(iabs(itype(i))))
+        enddo
+      endif
+
 cde         write(iout,*) 'REMD after',me,t_bath
            time08=MPI_WTIME()
            if (me.eq.king .or. .not. out1file) then