      SUBROUTINE ccsdtq_lambda2_6_4_1(d_a,k_a_offset,d_b,k_b_offset,d_c,
     &k_c_offset)
C     $Id: ccsdtq_lambda2_6_4_1.F 24184 2013-05-04 00:43:17Z edo $
C     This is a Fortran77 program generated by Tensor Contraction Engine v.1.0
C     Copyright (c) Battelle & Pacific Northwest National Laboratory (2002)
C     i2 ( h6 p1 )_vt + = 1 * Sum ( h8 p7 ) * t ( p7 h8 )_t * v ( h6 h8 p1 p7 )_v
      IMPLICIT NONE
#include "global.fh"
#include "mafdecls.fh"
#include "sym.fh"
#include "errquit.fh"
#include "tce.fh"
      INTEGER d_a
      INTEGER k_a_offset
      INTEGER d_b
      INTEGER k_b_offset
      INTEGER d_c
      INTEGER k_c_offset
      INTEGER NXTASK
      INTEGER next
      INTEGER nprocs
      INTEGER count
      INTEGER h6b
      INTEGER p1b
      INTEGER dimc
      INTEGER l_c_sort
      INTEGER k_c_sort
      INTEGER p7b
      INTEGER h8b
      INTEGER p7b_1
      INTEGER h8b_1
      INTEGER h6b_2
      INTEGER h8b_2
      INTEGER p1b_2
      INTEGER p7b_2
      INTEGER dim_common
      INTEGER dima_sort
      INTEGER dima
      INTEGER dimb_sort
      INTEGER dimb
      INTEGER l_a_sort
      INTEGER k_a_sort
      INTEGER l_a
      INTEGER k_a
      INTEGER l_b_sort
      INTEGER k_b_sort
      INTEGER l_b
      INTEGER k_b
      INTEGER l_c
      INTEGER k_c
      EXTERNAL NXTASK
      nprocs = GA_NNODES()
      count = 0
      next = NXTASK(nprocs,1)
      DO h6b = 1,noab
      DO p1b = noab+1,noab+nvab
      IF (next.eq.count) THEN
      IF ((.not.restricted).or.(int_mb(k_spin+h6b-1)+int_mb(k_spin+p1b-1
     &).ne.4)) THEN
      IF (int_mb(k_spin+h6b-1) .eq. int_mb(k_spin+p1b-1)) THEN
      IF (ieor(int_mb(k_sym+h6b-1),int_mb(k_sym+p1b-1)) .eq. ieor(irrep_
     &v,irrep_t)) THEN
      dimc = int_mb(k_range+h6b-1) * int_mb(k_range+p1b-1)
      IF (.not.MA_PUSH_GET(mt_dbl,dimc,'noname',l_c_sort,k_c_sort)) CALL
     & ERRQUIT('ccsdtq_lambda2_6_4_1',0,MA_ERR)
      CALL DFILL(dimc,0.0d0,dbl_mb(k_c_sort),1)
      DO p7b = noab+1,noab+nvab
      DO h8b = 1,noab
      IF (int_mb(k_spin+p7b-1) .eq. int_mb(k_spin+h8b-1)) THEN
      IF (ieor(int_mb(k_sym+p7b-1),int_mb(k_sym+h8b-1)) .eq. irrep_t) TH
     &EN
      CALL TCE_RESTRICTED_2(p7b,h8b,p7b_1,h8b_1)
      CALL TCE_RESTRICTED_4(h6b,h8b,p1b,p7b,h6b_2,h8b_2,p1b_2,p7b_2)
      dim_common = int_mb(k_range+p7b-1) * int_mb(k_range+h8b-1)
      dima_sort = 1
      dima = dim_common * dima_sort
      dimb_sort = int_mb(k_range+h6b-1) * int_mb(k_range+p1b-1)
      dimb = dim_common * dimb_sort
      IF ((dima .gt. 0) .and. (dimb .gt. 0)) THEN
      IF (.not.MA_PUSH_GET(mt_dbl,dima,'noname',l_a_sort,k_a_sort)) CALL
     & ERRQUIT('ccsdtq_lambda2_6_4_1',1,MA_ERR)
      IF (.not.MA_PUSH_GET(mt_dbl,dima,'noname',l_a,k_a)) CALL ERRQUIT('
     &ccsdtq_lambda2_6_4_1',2,MA_ERR)
      CALL GET_HASH_BLOCK(d_a,dbl_mb(k_a),dima,int_mb(k_a_offset),(h8b_1
     & - 1 + noab * (p7b_1 - noab - 1)))
      CALL TCE_SORT_2(dbl_mb(k_a),dbl_mb(k_a_sort),int_mb(k_range+p7b-1)
     &,int_mb(k_range+h8b-1),2,1,1.0d0)
      IF (.not.MA_POP_STACK(l_a)) CALL ERRQUIT('ccsdtq_lambda2_6_4_1',3,
     &MA_ERR)
      IF (.not.MA_PUSH_GET(mt_dbl,dimb,'noname',l_b_sort,k_b_sort)) CALL
     & ERRQUIT('ccsdtq_lambda2_6_4_1',4,MA_ERR)
      IF (.not.MA_PUSH_GET(mt_dbl,dimb,'noname',l_b,k_b)) CALL ERRQUIT('
     &ccsdtq_lambda2_6_4_1',5,MA_ERR)
      IF ((h8b .lt. h6b) .and. (p7b .lt. p1b)) THEN
      CALL GET_HASH_BLOCK(d_b,dbl_mb(k_b),dimb,int_mb(k_b_offset),(p1b_2
     & - 1 + (noab+nvab) * (p7b_2 - 1 + (noab+nvab) * (h6b_2 - 1 + (noab
     &+nvab) * (h8b_2 - 1)))))
      CALL TCE_SORT_4(dbl_mb(k_b),dbl_mb(k_b_sort),int_mb(k_range+h8b-1)
     &,int_mb(k_range+h6b-1),int_mb(k_range+p7b-1),int_mb(k_range+p1b-1)
     &,4,2,1,3,1.0d0)
      END IF
      IF ((h8b .lt. h6b) .and. (p1b .le. p7b)) THEN
      CALL GET_HASH_BLOCK(d_b,dbl_mb(k_b),dimb,int_mb(k_b_offset),(p7b_2
     & - 1 + (noab+nvab) * (p1b_2 - 1 + (noab+nvab) * (h6b_2 - 1 + (noab
     &+nvab) * (h8b_2 - 1)))))
      CALL TCE_SORT_4(dbl_mb(k_b),dbl_mb(k_b_sort),int_mb(k_range+h8b-1)
     &,int_mb(k_range+h6b-1),int_mb(k_range+p1b-1),int_mb(k_range+p7b-1)
     &,3,2,1,4,-1.0d0)
      END IF
      IF ((h6b .le. h8b) .and. (p7b .lt. p1b)) THEN
      CALL GET_HASH_BLOCK(d_b,dbl_mb(k_b),dimb,int_mb(k_b_offset),(p1b_2
     & - 1 + (noab+nvab) * (p7b_2 - 1 + (noab+nvab) * (h8b_2 - 1 + (noab
     &+nvab) * (h6b_2 - 1)))))
      CALL TCE_SORT_4(dbl_mb(k_b),dbl_mb(k_b_sort),int_mb(k_range+h6b-1)
     &,int_mb(k_range+h8b-1),int_mb(k_range+p7b-1),int_mb(k_range+p1b-1)
     &,4,1,2,3,-1.0d0)
      END IF
      IF ((h6b .le. h8b) .and. (p1b .le. p7b)) THEN
      CALL GET_HASH_BLOCK(d_b,dbl_mb(k_b),dimb,int_mb(k_b_offset),(p7b_2
     & - 1 + (noab+nvab) * (p1b_2 - 1 + (noab+nvab) * (h8b_2 - 1 + (noab
     &+nvab) * (h6b_2 - 1)))))
      CALL TCE_SORT_4(dbl_mb(k_b),dbl_mb(k_b_sort),int_mb(k_range+h6b-1)
     &,int_mb(k_range+h8b-1),int_mb(k_range+p1b-1),int_mb(k_range+p7b-1)
     &,3,1,2,4,1.0d0)
      END IF
      IF (.not.MA_POP_STACK(l_b)) CALL ERRQUIT('ccsdtq_lambda2_6_4_1',6,
     &MA_ERR)
      CALL DGEMM('T','N',dima_sort,dimb_sort,dim_common,1.0d0,dbl_mb(k_a
     &_sort),dim_common,dbl_mb(k_b_sort),dim_common,1.0d0,dbl_mb(k_c_sor
     &t),dima_sort)
      IF (.not.MA_POP_STACK(l_b_sort)) CALL ERRQUIT('ccsdtq_lambda2_6_4_
     &1',7,MA_ERR)
      IF (.not.MA_POP_STACK(l_a_sort)) CALL ERRQUIT('ccsdtq_lambda2_6_4_
     &1',8,MA_ERR)
      END IF
      END IF
      END IF
      END DO
      END DO
      IF (.not.MA_PUSH_GET(mt_dbl,dimc,'noname',l_c,k_c)) CALL ERRQUIT('
     &ccsdtq_lambda2_6_4_1',9,MA_ERR)
      CALL TCE_SORT_2(dbl_mb(k_c_sort),dbl_mb(k_c),int_mb(k_range+p1b-1)
     &,int_mb(k_range+h6b-1),2,1,1.0d0)
      CALL ADD_HASH_BLOCK(d_c,dbl_mb(k_c),dimc,int_mb(k_c_offset),(p1b -
     & noab - 1 + nvab * (h6b - 1)))
      IF (.not.MA_POP_STACK(l_c)) CALL ERRQUIT('ccsdtq_lambda2_6_4_1',10
     &,MA_ERR)
      IF (.not.MA_POP_STACK(l_c_sort)) CALL ERRQUIT('ccsdtq_lambda2_6_4_
     &1',11,MA_ERR)
      END IF
      END IF
      END IF
      next = NXTASK(nprocs,1)
      END IF
      count = count + 1
      END DO
      END DO
      next = NXTASK(-nprocs,1)
      call GA_SYNC()
      RETURN
      END
