wrf-fire /wrfv2_fire/external/fftpack/fftpack5/r1f5kb.F

Language Fortran 77 Lines 116
MD5 Hash 360e16738d281ff8c84d56f3ba7e387d Estimated Cost $2,509 (why?)
Repository git://github.com/jbeezley/wrf-fire.git View Raw File View Project SPDX
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!CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
!                                                                       
!   FFTPACK 5.0                                                         
!                                                                       
!   Authors:  Paul N. Swarztrauber and Richard A. Valent                
!                                                                       
!   $Id: r1f5kb.f,v 1.2 2004/06/15 21:29:20 rodney Exp $                
!                                                                       
!CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
                                                                        
      SUBROUTINE R1F5KB (IDO,L1,CC,IN1,CH,IN2,                          &
     &       WA1,WA2,WA3,WA4)                                           
      REAL   CC(IN1,IDO,5,L1)    ,CH(IN2,IDO,L1,5),                     &
     &       WA1(IDO)     ,WA2(IDO)     ,WA3(IDO)     ,WA4(IDO)         
!                                                                       
      ARG=2.*4.*ATAN(1.0)/5. 
      TR11=COS(ARG) 
      TI11=SIN(ARG) 
      TR12=COS(2.*ARG) 
      TI12=SIN(2.*ARG) 
      DO 101 K=1,L1 
         CH(1,1,K,1) = CC(1,1,1,K)+2.*CC(1,IDO,2,K)+2.*CC(1,IDO,4,K) 
         CH(1,1,K,2) = (CC(1,1,1,K)+TR11*2.*CC(1,IDO,2,K)               &
     &   +TR12*2.*CC(1,IDO,4,K))-(TI11*2.*CC(1,1,3,K)                   &
     &   +TI12*2.*CC(1,1,5,K))                                          
         CH(1,1,K,3) = (CC(1,1,1,K)+TR12*2.*CC(1,IDO,2,K)               &
     &   +TR11*2.*CC(1,IDO,4,K))-(TI12*2.*CC(1,1,3,K)                   &
     &   -TI11*2.*CC(1,1,5,K))                                          
         CH(1,1,K,4) = (CC(1,1,1,K)+TR12*2.*CC(1,IDO,2,K)               &
     &   +TR11*2.*CC(1,IDO,4,K))+(TI12*2.*CC(1,1,3,K)                   &
     &   -TI11*2.*CC(1,1,5,K))                                          
         CH(1,1,K,5) = (CC(1,1,1,K)+TR11*2.*CC(1,IDO,2,K)               &
     &   +TR12*2.*CC(1,IDO,4,K))+(TI11*2.*CC(1,1,3,K)                   &
     &   +TI12*2.*CC(1,1,5,K))                                          
  101 END DO 
      IF (IDO .EQ. 1) RETURN 
      IDP2 = IDO+2 
      DO 103 K=1,L1 
         DO 102 I=3,IDO,2 
            IC = IDP2-I 
        CH(1,I-1,K,1) = CC(1,I-1,1,K)+(CC(1,I-1,3,K)+CC(1,IC-1,2,K))    &
     &  +(CC(1,I-1,5,K)+CC(1,IC-1,4,K))                                 
        CH(1,I,K,1) = CC(1,I,1,K)+(CC(1,I,3,K)-CC(1,IC,2,K))            &
     &  +(CC(1,I,5,K)-CC(1,IC,4,K))                                     
        CH(1,I-1,K,2) = WA1(I-2)*((CC(1,I-1,1,K)+TR11*                  &
     &  (CC(1,I-1,3,K)+CC(1,IC-1,2,K))+TR12                             &
     &  *(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))-(TI11*(CC(1,I,3,K)             &
     &  +CC(1,IC,2,K))+TI12*(CC(1,I,5,K)+CC(1,IC,4,K))))                &
     &  -WA1(I-1)*((CC(1,I,1,K)+TR11*(CC(1,I,3,K)-CC(1,IC,2,K))         &
     &  +TR12*(CC(1,I,5,K)-CC(1,IC,4,K)))+(TI11*(CC(1,I-1,3,K)          &
     &  -CC(1,IC-1,2,K))+TI12*(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))          
        CH(1,I,K,2) = WA1(I-2)*((CC(1,I,1,K)+TR11*(CC(1,I,3,K)          &
     &  -CC(1,IC,2,K))+TR12*(CC(1,I,5,K)-CC(1,IC,4,K)))                 &
     &  +(TI11*(CC(1,I-1,3,K)-CC(1,IC-1,2,K))+TI12                      &
     &  *(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))+WA1(I-1)                      &
     &  *((CC(1,I-1,1,K)+TR11*(CC(1,I-1,3,K)                            &
     &  +CC(1,IC-1,2,K))+TR12*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))           &
     &  -(TI11*(CC(1,I,3,K)+CC(1,IC,2,K))+TI12                          &
     &  *(CC(1,I,5,K)+CC(1,IC,4,K))))                                   
        CH(1,I-1,K,3) = WA2(I-2)                                        &
     &  *((CC(1,I-1,1,K)+TR12*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR11*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))-(TI12*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))-TI11*(CC(1,I,5,K)+CC(1,IC,4,K))))                &
     & -WA2(I-1)                                                        &
     & *((CC(1,I,1,K)+TR12*(CC(1,I,3,K)-                                &
     &  CC(1,IC,2,K))+TR11*(CC(1,I,5,K)-CC(1,IC,4,K)))                  &
     &  +(TI12*(CC(1,I-1,3,K)-CC(1,IC-1,2,K))-TI11                      &
     &  *(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))                               
        CH(1,I,K,3) = WA2(I-2)                                          &
     & *((CC(1,I,1,K)+TR12*(CC(1,I,3,K)-                                &
     &  CC(1,IC,2,K))+TR11*(CC(1,I,5,K)-CC(1,IC,4,K)))                  &
     &  +(TI12*(CC(1,I-1,3,K)-CC(1,IC-1,2,K))-TI11                      &
     &  *(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))                               &
     &  +WA2(I-1)                                                       &
     &  *((CC(1,I-1,1,K)+TR12*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR11*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))-(TI12*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))-TI11*(CC(1,I,5,K)+CC(1,IC,4,K))))                
        CH(1,I-1,K,4) = WA3(I-2)                                        &
     &  *((CC(1,I-1,1,K)+TR12*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR11*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))+(TI12*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))-TI11*(CC(1,I,5,K)+CC(1,IC,4,K))))                &
     &  -WA3(I-1)                                                       &
     & *((CC(1,I,1,K)+TR12*(CC(1,I,3,K)-                                &
     &  CC(1,IC,2,K))+TR11*(CC(1,I,5,K)-CC(1,IC,4,K)))                  &
     &  -(TI12*(CC(1,I-1,3,K)-CC(1,IC-1,2,K))-TI11                      &
     &  *(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))                               
        CH(1,I,K,4) = WA3(I-2)                                          &
     & *((CC(1,I,1,K)+TR12*(CC(1,I,3,K)-                                &
     &  CC(1,IC,2,K))+TR11*(CC(1,I,5,K)-CC(1,IC,4,K)))                  &
     &  -(TI12*(CC(1,I-1,3,K)-CC(1,IC-1,2,K))-TI11                      &
     &  *(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))                               &
     &  +WA3(I-1)                                                       &
     &  *((CC(1,I-1,1,K)+TR12*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR11*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))+(TI12*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))-TI11*(CC(1,I,5,K)+CC(1,IC,4,K))))                
        CH(1,I-1,K,5) = WA4(I-2)                                        &
     &  *((CC(1,I-1,1,K)+TR11*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR12*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))+(TI11*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))+TI12*(CC(1,I,5,K)+CC(1,IC,4,K))))                &
     &  -WA4(I-1)                                                       &
     &  *((CC(1,I,1,K)+TR11*(CC(1,I,3,K)-CC(1,IC,2,K))                  &
     &  +TR12*(CC(1,I,5,K)-CC(1,IC,4,K)))-(TI11*(CC(1,I-1,3,K)          &
     &  -CC(1,IC-1,2,K))+TI12*(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))          
        CH(1,I,K,5) = WA4(I-2)                                          &
     &  *((CC(1,I,1,K)+TR11*(CC(1,I,3,K)-CC(1,IC,2,K))                  &
     &  +TR12*(CC(1,I,5,K)-CC(1,IC,4,K)))-(TI11*(CC(1,I-1,3,K)          &
     &  -CC(1,IC-1,2,K))+TI12*(CC(1,I-1,5,K)-CC(1,IC-1,4,K))))          &
     &  +WA4(I-1)                                                       &
     &  *((CC(1,I-1,1,K)+TR11*(CC(1,I-1,3,K)+CC(1,IC-1,2,K))            &
     &  +TR12*(CC(1,I-1,5,K)+CC(1,IC-1,4,K)))+(TI11*(CC(1,I,3,K)        &
     &  +CC(1,IC,2,K))+TI12*(CC(1,I,5,K)+CC(1,IC,4,K))))                
  102    CONTINUE 
  103 END DO 
      RETURN 
      END                                           
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