PROGRAM HYCOM_MERGE IMPLICIT NONE C C hycom_merge - Usage: hycom_merge fin1.a fin2.a fw.a idm jdm fout.a C C Outputs the weighted average of its inputs C w*a1 + (1-w)*a2 C C a1 is ignored where w=0.0, and a2 is ignored where w=1.0. C The result is a data void where w is a data void. C C fin*.a are assumed to contain idm*jdm 32-bit IEEE real values for C each array, in standard f77 element order, followed by padding C to a multiple of 4096 32-bit words, but otherwise with no control C bytes/words, and input values of 2.0**100 indicating a data void. C C fw.a is assumed to contain idm*jdm 32-bit IEEE real values between C 0.0 and 1.0 for a single array, in standard f77 element order, C followed by padding to a multiple of 4096 32-bit words, but otherwise C with no control bytes/words, and input values of 2.0**100 indicating C a data void. C C this version for "serial" Unix systems. C C Alan J. Wallcraft, Naval Research Laboratory, April 2010. C REAL*4, ALLOCATABLE :: A(:,:),B(:,:),W(:,:) REAL*4 :: PAD(4096) INTEGER IOS INTEGER IARGC INTEGER NARG CHARACTER*240 CARG C INTEGER IDM,JDM,NPAD CHARACTER*240 CFILE1,CFILE2,CFILEW,CFILEO C C READ ARGUMENTS. C NARG = IARGC() C IF (NARG.EQ.6) THEN CALL GETARG(1,CFILE1) CALL GETARG(2,CFILE2) CALL GETARG(3,CFILEW) CALL GETARG(4,CARG) READ(CARG,*) IDM CALL GETARG(5,CARG) READ(CARG,*) JDM CALL GETARG(6,CFILEO) ELSE WRITE(6,*) & 'Usage: hycom_merge fin1.a fin2.a fw.a idm jdm fout.a' CALL EXIT(1) ENDIF C NPAD = 4096 - MOD(IDM*JDM,4096) IF (NPAD.EQ.4096) THEN NPAD = 0 ENDIF C ALLOCATE( A(IDM,JDM), STAT=IOS ) IF (IOS.NE.0) THEN WRITE(6,*) 'Error in hycom_merge: could not allocate 1st ', + IDM*JDM,' words' CALL EXIT(2) ENDIF ALLOCATE( B(IDM,JDM), STAT=IOS ) IF (IOS.NE.0) THEN WRITE(6,*) 'Error in hycom_merge: could not allocate 2nd ', + IDM*JDM,' words' CALL EXIT(2) ENDIF ALLOCATE( W(IDM,JDM), STAT=IOS ) IF (IOS.NE.0) THEN WRITE(6,*) 'Error in hycom_merge: could not allocate 3rd ', + IDM*JDM,' words' CALL EXIT(2) ENDIF C CALL MERGE(A,B,W,IDM,JDM,PAD,NPAD, + CFILE1,CFILE2,CFILEW,CFILEO) CALL EXIT(0) END SUBROUTINE MERGE(A,B,W,IDM,JDM,PAD,NPAD, & CFILE1,CFILE2,CFILEW,CFILEO) IMPLICIT NONE C REAL*4 SPVAL PARAMETER (SPVAL=2.0**100) C CHARACTER*240 CFILE1,CFILE2,CFILEW,CFILEO INTEGER IDM,JDM,NPAD REAL*4 A(IDM,JDM),B(IDM,JDM),W(IDM,JDM),PAD(NPAD) C C MOST OF WORK IS DONE HERE. C #ifdef sun INTEGER IR_ISNAN C #endif CHARACTER*18 CASN INTEGER I,J,K,IOS,NRECL REAL*4 AMN,AMX #ifdef CRAY INTEGER*8 IU8,IOS8 #endif C IF (NPAD.EQ.0) THEN INQUIRE( IOLENGTH=NRECL) A ELSE INQUIRE( IOLENGTH=NRECL) A,PAD PAD(:) = SPVAL ENDIF #ifdef CRAY #ifdef t3e IF (MOD(NRECL,4096).EQ.0) THEN WRITE(CASN,8000) NRECL/4096 8000 FORMAT('-F cachea:',I4.4,':1:0') IU8 = 11 CALL ASNUNIT(IU8,CASN,IOS8) IF (IOS8.NE.0) THEN write(6,*) 'Error: can''t asnunit 11' write(6,*) 'ios = ',ios8 write(6,*) 'casn = ',casn CALL EXIT(5) ENDIF IU8 = 12 CALL ASNUNIT(IU8,CASN,IOS8) IF (IOS8.NE.0) THEN write(6,*) 'Error: can''t asnunit 12' write(6,*) 'ios = ',ios8 write(6,*) 'casn = ',casn CALL EXIT(5) ENDIF IU8 = 13 CALL ASNUNIT(IU8,CASN,IOS8) IF (IOS8.NE.0) THEN write(6,*) 'Error: can''t asnunit 13' write(6,*) 'ios = ',ios8 write(6,*) 'casn = ',casn CALL EXIT(5) ENDIF IU8 = 21 CALL ASNUNIT(IU8,CASN,IOS8) IF (IOS8.NE.0) THEN write(6,*) 'Error: can''t asnunit 21' write(6,*) 'ios = ',ios8 write(6,*) 'casn = ',casn CALL EXIT(5) ENDIF ENDIF #else CALL ASNUNIT(11,'-F syscall -N ieee',IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t asnunit 11' write(6,*) 'ios = ',ios CALL EXIT(5) ENDIF CALL ASNUNIT(12,'-F syscall -N ieee',IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t asnunit 12' write(6,*) 'ios = ',ios CALL EXIT(5) ENDIF CALL ASNUNIT(13,'-F syscall -N ieee',IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t asnunit 13' write(6,*) 'ios = ',ios CALL EXIT(5) ENDIF CALL ASNUNIT(21,'-F syscall -N ieee',IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t asnunit 21' write(6,*) 'ios = ',ios CALL EXIT(5) ENDIF #endif #endif OPEN(UNIT=11, FILE=CFILE1, FORM='UNFORMATTED', STATUS='OLD', + ACCESS='DIRECT', RECL=NRECL, IOSTAT=IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t open ',TRIM(CFILE1) write(6,*) 'ios = ',ios write(6,*) 'nrecl = ',nrecl CALL EXIT(3) ENDIF OPEN(UNIT=12, FILE=CFILE2, FORM='UNFORMATTED', STATUS='OLD', + ACCESS='DIRECT', RECL=NRECL, IOSTAT=IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t open ',TRIM(CFILE2) write(6,*) 'ios = ',ios write(6,*) 'nrecl = ',nrecl CALL EXIT(3) ENDIF OPEN(UNIT=13, FILE=CFILEW, FORM='UNFORMATTED', STATUS='OLD', + ACCESS='DIRECT', RECL=NRECL, IOSTAT=IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t open ',TRIM(CFILEW) write(6,*) 'ios = ',ios write(6,*) 'nrecl = ',nrecl CALL EXIT(3) ENDIF OPEN(UNIT=21, FILE=CFILEO, FORM='UNFORMATTED', STATUS='NEW', + ACCESS='DIRECT', RECL=NRECL, IOSTAT=IOS) IF (IOS.NE.0) THEN write(6,*) 'Error: can''t open ',TRIM(CFILEO) write(6,*) 'ios = ',ios write(6,*) 'nrecl = ',nrecl CALL EXIT(3) ENDIF C C --- READ THE WEIGHTS C READ(13,REC=1,IOSTAT=IOS) W #ifdef ENDIAN_IO CALL ENDIAN_SWAP(W,IDM*JDM) #endif IF (IOS.NE.0) THEN WRITE(6,*) 'can''t read ',TRIM(CFILEW) CALL EXIT(4) ENDIF CLOSE(13) C DO 110 K= 1,99999 READ(11,REC=K,IOSTAT=IOS) A #ifdef ENDIAN_IO CALL ENDIAN_SWAP(A,IDM*JDM) #endif IF (IOS.NE.0) THEN IF (K.EQ.1) THEN WRITE(6,*) 'can''t read ',TRIM(CFILE1) CALL EXIT(4) ELSE GOTO 1110 ENDIF ENDIF READ(12,REC=K,IOSTAT=IOS) B #ifdef ENDIAN_IO CALL ENDIAN_SWAP(B,IDM*JDM) #endif IF (IOS.NE.0) THEN IF (K.EQ.1) THEN WRITE(6,*) 'can''t read ',TRIM(CFILE2) CALL EXIT(4) ELSE GOTO 1110 ENDIF ENDIF AMN = SPVAL AMX = -SPVAL DO 210 J= 1,JDM DO 212 I= 1,IDM #ifdef sun IF (IR_ISNAN(A(I,J)).NE.1) THEN IF (W(I,J).NE.SPVAL) THEN IF (W(I,J).EQ.0.0) THEN A(I,J) = B(I,J) AMN = MIN( AMN, A(I,J) ) AMX = MAX( AMX, A(I,J) ) ELSEIF (W(I,J).EQ.1.0) THEN * A(I,J) = A(I,J) AMN = MIN( AMN, A(I,J) ) AMX = MAX( AMX, A(I,J) ) ELSEIF (A(I,J).NE.SPVAL .AND. & B(I,J).NE.SPVAL ) THEN A(I,J) = W(I,J)*A(I,J) + (1.0-W(I,J))*B(I,J) AMN = MIN( AMN, A(I,J) ) AMX = MAX( AMX, A(I,J) ) ELSE A(I,J) = SPVAL ENDIF ELSE A(I,J) = SPVAL ENDIF ENDIF #else IF (W(I,J).NE.SPVAL) THEN IF (W(I,J).EQ.0.0) THEN A(I,J) = B(I,J) ELSEIF (W(I,J).EQ.1.0) THEN * A(I,J) = A(I,J) ELSEIF (A(I,J).NE.SPVAL .AND. & B(I,J).NE.SPVAL ) THEN A(I,J) = W(I,J)*A(I,J) + (1.0-W(I,J))*B(I,J) ELSE A(I,J) = SPVAL ENDIF ELSE A(I,J) = SPVAL ENDIF IF (A(I,J).NE.SPVAL) THEN AMN = MIN( AMN, A(I,J) ) AMX = MAX( AMX, A(I,J) ) ENDIF #endif 212 CONTINUE 210 CONTINUE #ifdef ENDIAN_IO CALL ENDIAN_SWAP(A,IDM*JDM) #endif IF (NPAD.EQ.0) THEN WRITE(21,REC=K,IOSTAT=IOS) A ELSE WRITE(21,REC=K,IOSTAT=IOS) A,PAD ENDIF WRITE(6,'(a,1p2g16.8)') & 'min, max = ',AMN,AMX 110 CONTINUE 1110 CONTINUE WRITE(6,*) WRITE(6,*) K-1,' FIELDS PROCESSED' WRITE(6,*) C CLOSE(11) CLOSE(12) CLOSE(21) C RETURN END