diff --git a/devel/ccsd_gpu/ccsd_space_orb_sub_chol.irp.f b/devel/ccsd_gpu/ccsd_space_orb_sub_chol.irp.f
index c473d14..5f52709 100644
--- a/devel/ccsd_gpu/ccsd_space_orb_sub_chol.irp.f
+++ b/devel/ccsd_gpu/ccsd_space_orb_sub_chol.irp.f
@@ -470,46 +470,46 @@ subroutine compute_r2_space_chol(nO,nV,t1,t2,tau,H_oo,H_vv,H_vo,r2,max_r2)
   ! A1(u,v,i,j) = cc_space_v_oooo(u,v,i,j)
   ! A1(u,v,i,j) += cc_space_v_ovoo(u,a,i,j) * t1(v,a) &
 
-!  call dgemm('N','N', nO, nO*nO*nO, nV, &
-!             1d0, t1    , size(t1,1), &
-!                  cc_space_v_vooo, size(cc_space_v_vooo,1), &
-!             0d0, Y_oooo, size(Y_oooo,1))
-!
-!  !$omp parallel &
-!  !$omp private(u,v,i,j) &
-!  !$omp default(shared)
-!  !$omp do collapse(2)
-!  do j = 1, nO
-!    do i = 1, nO
-!      do v = 1, nO
-!        do u = 1, nO
-!          A1(u,v,i,j) = cc_space_v_oooo(u,v,i,j) + Y_oooo(v,u,j,i) + Y_oooo(u,v,i,j)
-!        enddo
-!      enddo
-!    enddo
-!  enddo
-!  !$omp end do
-!  !$omp end parallel
-!
-!  deallocate(Y_oooo)
-!
-!  ! A1(u,v,i,j) += cc_space_v_vvoo(a,b,i,j) * tau(u,v,a,b)
-!  call dgemm('N','N', nO*nO, nO*nO, nV*nV, &
-!             1d0, tau     , size(tau,1) * size(tau,2), &
-!                  cc_space_v_vvoo, size(cc_space_v_vvoo,1) * size(cc_space_v_vvoo,2), &
-!             1d0, A1      , size(A1,1) * size(A1,2))
-!
-!  call dgemm('N','N',nO*nO,nV*nV,nO*nO, &
-!             1d0, A1, size(A1,1) * size(A1,2), &
-!                  tau, size(tau,1) * size(tau,2), &
-!             0d0, r2, size(r2,1) * size(r2,2))
-!
-!  deallocate(A1)
+  call dgemm('N','N', nO, nO*nO*nO, nV, &
+             1d0, t1    , size(t1,1), &
+                  cc_space_v_vooo, size(cc_space_v_vooo,1), &
+             0d0, Y_oooo, size(Y_oooo,1))
+
+  !$omp parallel &
+  !$omp private(u,v,i,j) &
+  !$omp default(shared)
+  !$omp do collapse(2)
+  do j = 1, nO
+    do i = 1, nO
+      do v = 1, nO
+        do u = 1, nO
+          A1(u,v,i,j) = cc_space_v_oooo(u,v,i,j) + Y_oooo(v,u,j,i) + Y_oooo(u,v,i,j)
+        enddo
+      enddo
+    enddo
+  enddo
+  !$omp end do
+  !$omp end parallel
+
+  deallocate(Y_oooo)
+
+  ! A1(u,v,i,j) += cc_space_v_vvoo(a,b,i,j) * tau(u,v,a,b)
+  call dgemm('N','N', nO*nO, nO*nO, nV*nV, &
+             1d0, tau     , size(tau,1) * size(tau,2), &
+                  cc_space_v_vvoo, size(cc_space_v_vvoo,1) * size(cc_space_v_vvoo,2), &
+             1d0, A1      , size(A1,1) * size(A1,2))
+
+  call dgemm('N','N',nO*nO,nV*nV,nO*nO, &
+             1d0, A1, size(A1,1) * size(A1,2), &
+                  tau, size(tau,1) * size(tau,2), &
+             0d0, r2, size(r2,1) * size(r2,2))
+
+  deallocate(A1)
 
 
   call compute_r2_space_chol_gpu(nO,nV,cholesky_mo_num,t1,tau, &
       cc_space_v_vo_chol, cc_space_v_vv_chol, &
-      cc_space_v_oooo, cc_space_v_vooo, cc_space_v_oovv, &
+      cc_space_v_oooo, cc_space_v_vooo, cc_space_v_oovv, cc_space_v_vvoo, &
       r2)
 
   double precision, allocatable :: X_oovv(:,:,:,:)
diff --git a/devel/ccsd_gpu/gpu.c b/devel/ccsd_gpu/gpu.c
index d4a4fd8..8b88b8f 100644
--- a/devel/ccsd_gpu/gpu.c
+++ b/devel/ccsd_gpu/gpu.c
@@ -67,6 +67,7 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
                 double* cc_space_v_oooo,
                 double* cc_space_v_vooo,
                 double* cc_space_v_oovv,
+                double* cc_space_v_vvoo,
                 double* r2)
 {
       double* d_tau;
@@ -121,24 +122,7 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
       cudaMalloc((void **)&d_t1, nO * nV * sizeof(double));
       cublasSetMatrix(nO, nV, sizeof(double), t1, lda, d_t1, lda);
 
-      lda = cholesky_mo_num * nV;
-      cudaMalloc((void **)&d_tmp_cc, lda * nV * sizeof(double));
-
-      alpha=1.0; beta=0.0;
-      m=cholesky_mo_num*nV;  n=nV;  k=nO;
-      A = d_cc_space_v_vo_chol; B = d_t1; C = d_tmp_cc;
-      cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, m, B, k, &beta, C, m);
-
-      double* d_tmp_cc2;
-      cudaMalloc((void **)&d_tmp_cc2, cholesky_mo_num*nV*sizeof(double));
-
-      double* d_B1;
-      cudaMalloc((void**)&d_B1, nV*nV*BLOCK_SIZE*sizeof(double));
-
-      double* d_tmpB1;
-      cudaMalloc((void**)&d_tmpB1, nV*BLOCK_SIZE*nV*sizeof(double));
-
-      #pragma sections
+      #pragma omp sections
       {
         #pragma omp section
         for (size_t i=0 ; i<nO*nO*nV*nV ; ++i)
@@ -146,6 +130,7 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
            r2[i] += cc_space_v_oovv[i];
         }
 
+/*
         #pragma omp section
         {
            double* d_cc_space_v_vooo;
@@ -159,9 +144,9 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
            beta =  0.0;
            m=nO ; n=nO*nO*nO; k=nV;
            A = d_t1 ; lda = nO;
-           B = d_cc_space_v_vooo ; ldb = nO;
+           B = d_cc_space_v_vooo ; ldb = nV;
            C = d_Y_oooo; ldc = nO;
-           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
+           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, ldb, &beta, C, ldc);
            cudaFree(d_cc_space_v_vooo);
 
            double* d_A1;
@@ -181,9 +166,9 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
              for (int i=0 ; i<nO ; ++i) {
                 alpha = 1.0;
                 beta =  1.0;
-                A = d_A1[nO*nO*(i+nO*j)]; lda = nO;
-                B = d_Y_oooo[nO*nO*(j+nO*i)]; ldb = nO;
-                C = d_A1[nO*nO*(i+nO*j)]; ldc = nO;
+                A = &(d_A1[nO*nO*(i+nO*j)]); lda = nO;
+                B = &(d_Y_oooo[nO*nO*(j+nO*i)]); ldb = nO;
+                C = &(d_A1[nO*nO*(i+nO*j)]); ldc = nO;
                 cublasDgeam(handle, CUBLAS_OP_N, CUBLAS_OP_T, nO, nO, &alpha, A, lda, &beta, B, ldb, C, ldc);
 
              }
@@ -200,8 +185,8 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
            A = d_tau ; lda = nO*nO;
            B = d_cc_space_v_vvoo ; ldb = nV*nV;
            C = d_A1; ldc = nO*nO;
-           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
-           cudafree(d_cc_space_v_vvoo);
+           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, ldb, &beta, C, ldc);
+           cudaFree(d_cc_space_v_vvoo);
 
            alpha = 1.0;
            beta =  0.0;
@@ -209,12 +194,31 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
            A = d_A1  ; lda = nO*nO;
            B = d_tau ; ldb = nO*nO;
            C = d_r2; ldc = nO*nO;
-           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
-           cudafree(A1);
+           cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, ldb, &beta, C, ldc);
+           cudaFree(d_A1);
 
         }
+*/
       }
 
+
+      lda = cholesky_mo_num * nV;
+      cudaMalloc((void **)&d_tmp_cc, lda * nV * sizeof(double));
+
+      alpha=1.0; beta=0.0;
+      m=cholesky_mo_num*nV;  n=nV;  k=nO;
+      A = d_cc_space_v_vo_chol; B = d_t1; C = d_tmp_cc;
+      cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, m, B, k, &beta, C, m);
+
+      double* d_tmp_cc2;
+      cudaMalloc((void **)&d_tmp_cc2, cholesky_mo_num*nV*sizeof(double));
+
+      double* d_B1;
+      cudaMalloc((void**)&d_B1, nV*nV*BLOCK_SIZE*sizeof(double));
+
+      double* d_tmpB1;
+      cudaMalloc((void**)&d_tmpB1, nV*BLOCK_SIZE*nV*sizeof(double));
+
       #pragma omp for
       for (size_t gam=0 ; gam<nV ; ++gam)
       {
diff --git a/devel/ccsd_gpu/gpu_module.f90 b/devel/ccsd_gpu/gpu_module.f90
index 02d3317..54a3318 100644
--- a/devel/ccsd_gpu/gpu_module.f90
+++ b/devel/ccsd_gpu/gpu_module.f90
@@ -6,7 +6,7 @@ module gpu_module
   interface
     subroutine compute_r2_space_chol_gpu(nO,nV,cholesky_mo_num, t1,tau,&
           cc_space_v_vo_chol,cc_space_v_vv_chol, &
-          cc_space_v_oooo, cc_space_v_vooo, cc_space_v_oovv, &
+          cc_space_v_oooo, cc_space_v_vooo, cc_space_v_oovv, cc_space_v_vvoo, &
           r2) bind(C)
         import c_int, c_double
         integer(c_int), value :: nO, nV, cholesky_mo_num
@@ -17,6 +17,7 @@ module gpu_module
         real(c_double), intent(in)  :: cc_space_v_oooo(nO,nO,nO,nO)
         real(c_double), intent(in)  :: cc_space_v_vooo(nV,nO,nO,nO)
         real(c_double), intent(in)  :: cc_space_v_oovv(nO,nO,nV,nV)
+        real(c_double), intent(in)  :: cc_space_v_vvoo(nV,nV,nO,nO)
         real(c_double), intent(out) :: r2(nO,nO,nV,nV)
     end subroutine