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|
SUBROUTINE JOINPATH(STR1,STR2,PATH)
CHARACTER*(*) STR1
CHARACTER*(*) STR2
CHARACTER*(*) PATH
INTEGER I,J,K
I =1
DO WHILE (I.LE.LEN(STR1))
IF(STR1(I:I).EQ.' ') GOTO 800
PATH(I:I) = STR1(I:I)
I=I+1
ENDDO
800 CONTINUE
J=1
DO WHILE (J.LE.LEN(STR2))
IF(STR2(J:J).EQ.' ') GOTO 801
PATH(I-1+J:I-1+J) = STR2(J:J)
J=J+1
ENDDO
801 CONTINUE
K=I+J-1
DO WHILE (K.LE.LEN(PATH))
PATH(K:K) = ' '
K=K+1
ENDDO
RETURN
END
SUBROUTINE INITCOLLIER()
C
C INITIALISATION OF COLLIER
C
C
C MODULE
C
USE COLLIER
C
C CONSTANTS
C
CHARACTER(LEN=*) NO_FOLDER
PARAMETER (NO_FOLDER='')
CHARACTER(LEN=*) FOLDEROUTPUT
PARAMETER (FOLDEROUTPUT='COLLIER_output')
C Force COLLIER to completely reset from scratch
LOGICAL NORESET
PARAMETER (NORESET=.FALSE.)
C
C LOCAL VARIABLES
C
INTEGER N_CACHES
C
C GLOBAL VARIABLES
C
INCLUDE 'MadLoopParams.inc'
C Now obtain the overall maximum rank, maximum external lines
C and maximal number of processes.
INCLUDE 'global_specs.inc'
C ----------
C BEGIN CODE
C ----------
C Initialize Collier
IF (.NOT.COLLIERCANOUTPUT) THEN
CALL INIT_CLL(MAXNEXTERNAL,OVERALLMAXRANK,NO_FOLDER,NORESET)
ELSE
CALL INIT_CLL(MAXNEXTERNAL,OVERALLMAXRANK,FOLDEROUTPUT,NORESET)
ENDIF
C Set target accuracy, be conservative w.r.t user request
C Keep in mind that COLLIER has been optimized for 1d-8.
IF (COLLIERREQUIREDACCURACY.EQ.-1.0D0) THEN
CALL SETREQACC_CLL(MLSTABTHRES*1.0D-3)
ELSE
CALL SETREQACC_CLL(COLLIERREQUIREDACCURACY)
ENDIF
C Set COLLIER mode
CALL SETMODE_CLL(COLLIERMODE)
C Set the global cache strategy
C If we use the caches for the poles as well, then it is a total of
C 4 caches per process.
IF (COLLIERUSECACHEFORPOLES) THEN
N_CACHES =4*NPROCS
ELSE
N_CACHES =NPROCS
ENDIF
IF (COLLIERGLOBALCACHE.EQ.-1) THEN
CALL INITCACHESYSTEM_CLL(N_CACHES,MAXNEXTERNAL)
ELSEIF(COLLIERGLOBALCACHE.GT.0) THEN
CALL INITCACHESYSTEM_CLL(N_CACHES,COLLIERGLOBALCACHE)
ENDIF
C Make sure to start by first switching off all cache
IF (COLLIERGLOBALCACHE.NE.0) THEN
CALL SWITCHOFFCACHESYSTEM_CLL()
ENDIF
C Make sure no COLLIER error can interrupt the code
CALL SWITCHOFFERRSTOP_CLL()
C Specify below your other custom COLLIER parameter settings
C [user_specific_COLLIER_settings]
END
SUBROUTINE SET_FORBID_HEL_DOUBLECHECK(ONOFF)
C
C Give the possibility to overwrite the value of MadLoopParams.dat
C for the helicity double checking.
C Make sure to call this subroutine before the first time you
C call MadLoop.
C
IMPLICIT NONE
C
C ARGUMENT
C
LOGICAL ONOFF
C
C GLOBAL VARIABLES
C
LOGICAL FORBID_HEL_DOUBLECHECK
DATA FORBID_HEL_DOUBLECHECK/.FALSE./
COMMON/FORBID_HEL_DOUBLECHECK/FORBID_HEL_DOUBLECHECK
C ----------
C BEGIN CODE
C ----------
FORBID_HEL_DOUBLECHECK = ONOFF
END
SUBROUTINE SETMADLOOPPATH(PATH)
CHARACTER(512) PATH
CHARACTER(512) DUMMY
CHARACTER(512) EPATH ! path of the executable
INTEGER POS
CHARACTER(512) PREFIX,FPATH
CHARACTER(17) NAMETOCHECK
PARAMETER (NAMETOCHECK='MadLoopParams.dat')
LOGICAL ML_INIT
DATA ML_INIT/.TRUE./
COMMON/ML_INIT/ML_INIT
LOGICAL CTINIT,TIRINIT,GOLEMINIT,SAMURAIINIT,NINJAINIT
$ ,COLLIERINIT
DATA CTINIT,TIRINIT,GOLEMINIT,SAMURAIINIT,NINJAINIT,COLLIERINIT
$ /.TRUE.,.TRUE.,.TRUE.,.TRUE.,.TRUE.,.TRUE./
COMMON/REDUCTIONCODEINIT/CTINIT, TIRINIT, GOLEMINIT, SAMURAIINIT
$ , NINJAINIT, COLLIERINIT
CHARACTER(512) MLPATH
DATA MLPATH/'[[NA]]'/
COMMON/MLPATH/MLPATH
INTEGER I
C Just a dummy call for LD to pick up this function
C when creating the BLHA2 dynamic library
DUMMY = ' '
CALL SETPARA2(DUMMY)
IF (LEN(PATH).GE.4 .AND. PATH(1:4).EQ.'auto') THEN
IF (MLPATH(1:6).EQ.'[[NA]]') THEN
C Try to automatically find the path
PREFIX='./'
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
OPEN(1, FILE=FPATH, ERR=1, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
1 CONTINUE
CLOSE(1)
PREFIX='./MadLoop5_resources/'
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
OPEN(1, FILE=FPATH, ERR=2, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
2 CONTINUE
CLOSE(1)
PREFIX='../MadLoop5_resources/'
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
OPEN(1, FILE=FPATH, ERR=3, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
3 CONTINUE
CLOSE(1)
C
C Try to automatically find the path from the executable
C location
C particularly usefull in gridpack readonly mode
C
CALL GETARG(0,PATH) !path is the PATH to the madevent executable (either global or from launching directory)
POS = INDEX(PATH,'/',.TRUE.)
PREFIX = PATH(:POS)
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
WRITE(*,*) 'test', FPATH
OPEN(1, FILE=FPATH, ERR=4, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
4 CONTINUE
CLOSE(1)
PREFIX= PREFIX // '/MadLoop5_resources/'
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
WRITE(*,*) 'test', FPATH
OPEN(1, FILE=FPATH, ERR=5, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
5 CONTINUE
CLOSE(1)
PREFIX= PATH(:POS) // '/../MadLoop5_resources/'
CALL JOINPATH(PREFIX,NAMETOCHECK,FPATH)
WRITE(*,*) 'test', FPATH
OPEN(1, FILE=FPATH, ERR=6, STATUS='OLD',ACTION='READ')
MLPATH=PREFIX
GOTO 10
6 CONTINUE
CLOSE(1)
C We could not automatically find the auxiliary files
WRITE(*,*) '==='
WRITE(*,*) 'ERROR: MadLoop5 could not automatically find the'
$ //' file MadLoopParams.dat.'
WRITE(*,*) '==='
WRITE(*,*) '(Try using <CALL setMadLoopPath(/my/path)>'
$ //' (before your first call to MadLoop) in order to set the'
$ //' directory where this file is located as well as other'
$ //' auxiliary files, such as <xxx>_ColorNumFactors.dat,'
$ //' <xxx>_ColorDenomFactors.dat, etc..)'
STOP
10 CONTINUE
CLOSE(1)
RETURN
ENDIF
ELSE
C Use the one specified by the user
C Make sure there is a separator added
I =1
DO WHILE (I.LE.LEN(PATH) .AND. PATH(I:I).NE.' ')
I=I+1
ENDDO
IF (PATH(I-1:I-1).NE.'/') THEN
PATH(I:I) = '/'
ENDIF
MLPATH=PATH
ENDIF
C Check that the FilePath set is correct
CALL JOINPATH(MLPATH,NAMETOCHECK,FPATH)
OPEN(1, FILE=FPATH, ERR=33, STATUS='OLD',ACTION='READ')
GOTO 11
33 CONTINUE
CLOSE(1)
WRITE(*,*) '==='
WRITE(*,*) 'ERROR: The MadLoop5 auxiliary files could not be'
$ //' found in ',MLPATH
WRITE(*,*) '==='
STOP
11 CONTINUE
CLOSE(1)
END
INTEGER FUNCTION SET_RET_CODE_U(MLRED,DOING_QP,STABLE)
C
C This functions returns the value of U
C
C
C U == 0
C Not stable.
C U == 1
C Stable with CutTools in double precision.
C U == 2
C Stable with PJFry++.
C U == 3
C Stable with IREGI.
C U == 4
C Stable with Golem95.
C U == 5
C Stable with Samurai.
C U == 6
C Stable with Ninja in double precision.
C U == 7
C Stable with COLLIER.
C U == 8
C Stable with Ninja in quadruple precision.
C U == 9
C Stable with CutTools in quadruple precision.
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER MLRED
LOGICAL DOING_QP,STABLE
C
C LOCAL VARIABLES
C
C
C FUNCTION
C
C
C BEGIN CODE
C
IF(.NOT.STABLE)THEN
SET_RET_CODE_U=0
RETURN
ENDIF
IF(DOING_QP)THEN
IF(MLRED.EQ.1)THEN
SET_RET_CODE_U=9
RETURN
ELSEIF(MLRED.EQ.6)THEN
SET_RET_CODE_U=8
RETURN
ELSE
STOP 'Only CutTools and Ninja can use quardruple precision'
ENDIF
ENDIF
IF(MLRED.GE.1.AND.MLRED.LE.7)THEN
SET_RET_CODE_U=MLRED
ELSE
STOP 'Only CutTools, PJFry++, IREGI, Golem95, Samurai, Ninja'
$ //' and COLLIER are available'
ENDIF
END
SUBROUTINE DETECT_LOOPLIB(LIBNUM,NLOOPLINE,RANK,COMPLEX_MASS
$ ,HAS_HEFT_VERTEX,MAX_SPIN_CONNECTED_TO_LOOP,LPASS)
C
C DETECT WHICH LOOP LIB PASSED
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER LIBNUM,NLOOPLINE,RANK,MAX_SPIN_CONNECTED_TO_LOOP
C The argument HAS_HEFT_VERTEX is only to implement correctly
C CutTools limitation
LOGICAL COMPLEX_MASS,LPASS,HAS_HEFT_VERTEX
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
IF(LIBNUM.EQ.1)THEN
C CutTools
CALL DETECT_CUTTOOLS(NLOOPLINE,RANK,COMPLEX_MASS
$ ,HAS_HEFT_VERTEX,MAX_SPIN_CONNECTED_TO_LOOP,LPASS)
ELSEIF(LIBNUM.EQ.2)THEN
C PJFry++
CALL DETECT_PJFRY(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSEIF(LIBNUM.EQ.3)THEN
C IREGI
CALL DETECT_IREGI(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSEIF(LIBNUM.EQ.4)THEN
C Golem95
CALL DETECT_GOLEM(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSEIF(LIBNUM.EQ.5)THEN
C Samurai
CALL DETECT_SAMURAI(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSEIF(LIBNUM.EQ.6)THEN
C Ninja
CALL DETECT_NINJA(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSEIF(LIBNUM.EQ.7)THEN
C Collier
CALL DETECT_COLLIER(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
ELSE
STOP 'Only CutTools, PJFry++, IREGI, Golem95, Samurai, Ninja'
$ //' and COLLIER are available'
ENDIF
RETURN
END
SUBROUTINE DETECT_CUTTOOLS(NLOOPLINE,RANK,COMPLEX_MASS
$ ,HAS_HEFT_VERTEX,MAX_SPIN_CONNECTED_TO_LOOP,LPASS)
C
C DETECT whether CUTTOOLS CAN BE USED OR NOT
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
INTEGER MAX_SPIN_CONNECTED_TO_LOOP
LOGICAL COMPLEX_MASS,LPASS,HAS_HEFT_VERTEX
C
C LOCAL VARIABLES
C
INTEGER MAX_RANK
C ----------
C BEGIN CODE
C ----------
LPASS=.TRUE.
C The limit of 10 loop lines is just a parameter hardcoded in
C CutTools sources.
C It can easily be increased if necessary.
C Also in the presence of spin2 particles, RANK=NLOOPLINE+1 is not
C supported,
C or in general whenever the higher rank doesn't come from the
C Higgs effective vertex.
IF (MAX_SPIN_CONNECTED_TO_LOOP.LE.3.AND.HAS_HEFT_VERTEX) THEN
MAX_RANK = NLOOPLINE+1
ELSE
MAX_RANK = NLOOPLINE
ENDIF
IF( (RANK.GT.MAX_RANK).OR.(NLOOPLINE.GT.10) ) THEN
LPASS=.FALSE.
ENDIF
RETURN
END
SUBROUTINE DETECT_SAMURAI(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C DETECT whether Samurai CAN BE USED OR NOT
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
LPASS=.TRUE.
C The limit of 8 loop lines is just a parameter hardcoded in
C Samurai sources.
C It can easily be increased if necessary.
IF((NLOOPLINE+1.LT.RANK).OR.(NLOOPLINE.GT.8)) THEN
LPASS=.FALSE.
ENDIF
RETURN
END
SUBROUTINE DETECT_NINJA(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C Detect whether Ninja can be used or not
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
LPASS=.TRUE.
C The limit of rank 20 is just a parameter hardcoded in Ninja
C sources.
C It can easily be increased if necessary.
IF((NLOOPLINE+1.LT.RANK).OR.(RANK.GE.20)) THEN
LPASS=.FALSE.
ENDIF
RETURN
END
SUBROUTINE DETECT_COLLIER(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C Detect whether Collier can be used or not
C
USE COLLIER
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
INTEGER CURRENT_COLLIERMODE
C
C GLOBAL VARIABLES
C
LOGICAL CTINIT,TIRINIT,GOLEMINIT,SAMURAIINIT,NINJAINIT
$ ,COLLIERINIT
COMMON/REDUCTIONCODEINIT/CTINIT, TIRINIT, GOLEMINIT, SAMURAIINIT
$ , NINJAINIT, COLLIERINIT
INCLUDE 'MadLoopParams.inc'
C ----------
C BEGIN CODE
C ----------
IF (.NOT.COLLIERINIT) THEN
CALL GETMODE_CLL(CURRENT_COLLIERMODE)
ELSE
CURRENT_COLLIERMODE = COLLIERMODE
ENDIF
LPASS=.TRUE.
IF (CURRENT_COLLIERMODE.NE.1) THEN
C The DD branch is used and it has limitations
IF((NLOOPLINE.GT.6).OR.(RANK.GT.NLOOPLINE)) THEN
LPASS=.FALSE.
ENDIF
ELSE
C Limitations of the COLI branch are academic.
LPASS=.TRUE.
ENDIF
RETURN
END
SUBROUTINE DETECT_PJFRY(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C DETECT whether PJFRY++ CAN BE USED OR NOT
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
LPASS=.TRUE.
IF(NLOOPLINE.LT.RANK.OR.RANK.GT.5.OR.NLOOPLINE.GT.5.OR.COMPLEX_MA
$SS.OR.NLOOPLINE.EQ.1) THEN
LPASS=.FALSE.
ENDIF
RETURN
END
SUBROUTINE DETECT_IREGI(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C DETECT whether IREGI CAN BE USED OR NOT
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
C Stability studies show that IREGI is completely unstable at rank
C 7 and above.
LPASS=.TRUE.
IF(NLOOPLINE.GE.8.OR.RANK.GE.7)LPASS=.FALSE.
RETURN
END
SUBROUTINE DETECT_GOLEM(NLOOPLINE,RANK,COMPLEX_MASS,LPASS)
C
C DETECT whether Golem95 CAN BE USED OR NOT
C
IMPLICIT NONE
C
C CONSTANTS
C
C
C ARGUMENTS
C
INTEGER NLOOPLINE,RANK
LOGICAL COMPLEX_MASS,LPASS
C
C LOCAL VARIABLES
C
C
C GLOBAL VARIABLES
C
C ----------
C BEGIN CODE
C ----------
LPASS=.TRUE.
IF(NLOOPLINE.GE.7.OR.RANK.GE.7.OR.NLOOPLINE.LE.1)LPASS=.FALSE.
IF(NLOOPLINE.LE.5.AND.RANK.GT.NLOOPLINE+1)LPASS=.FALSE.
IF(NLOOPLINE.EQ.6.AND.RANK.GT.NLOOPLINE)LPASS=.FALSE.
RETURN
END
C Now some sorting related routines. Only to be used for small
C arrays since these are not the most optimized sorting algorithms.
! --------------------------------------------------------------------
! INTEGER FUNCTION FindMinimum():
! This function returns the location of the minimum in the section
! between Start and End.
! --------------------------------------------------------------------
INTEGER FUNCTION FINDMINIMUM(X, MSTART, MEND)
IMPLICIT NONE
INTEGER MAXNREF_EVALS
PARAMETER (MAXNREF_EVALS=100)
DOUBLE PRECISION, DIMENSION(MAXNREF_EVALS), INTENT(IN) :: X
INTEGER, INTENT(IN) :: MSTART, MEND
INTEGER :: MINIMUM
INTEGER :: LOCATION
INTEGER :: I
MINIMUM = X(MSTART) ! assume the first is the min
LOCATION = MSTART ! record its position
DO I = MSTART+1, MEND ! start with next elements
IF (X(I) < MINIMUM) THEN ! if x(i) less than the min?
MINIMUM = X(I) ! Yes, a new minimum found
LOCATION = I ! record its position
END IF
END DO
FINDMINIMUM = LOCATION ! return the position
END FUNCTION FINDMINIMUM
! --------------------------------------------------------------------
! SUBROUTINE Swap():
! This subroutine swaps the values of its two formal arguments.
! --------------------------------------------------------------------
SUBROUTINE SWAP(A, B)
IMPLICIT NONE
REAL*8, INTENT(INOUT) :: A, B
REAL*8 :: TEMP
TEMP = A
A = B
B = TEMP
END SUBROUTINE SWAP
! --------------------------------------------------------------------
! SUBROUTINE Sort():
! This subroutine receives an array x() and sorts it into ascending
! order.
! --------------------------------------------------------------------
SUBROUTINE SORT(X, MSIZE)
IMPLICIT NONE
INTEGER MAXNREF_EVALS
PARAMETER (MAXNREF_EVALS=100)
REAL*8, DIMENSION(MAXNREF_EVALS), INTENT(INOUT) :: X
INTEGER, INTENT(IN) :: MSIZE
INTEGER :: I
INTEGER :: LOCATION
INTEGER :: FINDMINIMUM
DO I = 1, MSIZE-1 ! except for the last
LOCATION = FINDMINIMUM(X, I, MSIZE) ! find min from this to last
CALL SWAP(X(I), X(LOCATION)) ! swap this and the minimum
END DO
END SUBROUTINE SORT
! --------------------------------------------------------------------
! REAL*8 FUNCTION Median() :
! This function receives an array X of N entries, copies its value
! to a local array Temp(), sorts Temp() and computes the median.
! The returned value is of REAL type.
! --------------------------------------------------------------------
REAL*8 FUNCTION MEDIAN(X, N)
IMPLICIT NONE
INTEGER MAXNREF_EVALS
PARAMETER (MAXNREF_EVALS=100)
REAL*8, DIMENSION(MAXNREF_EVALS), INTENT(IN) :: X
INTEGER, INTENT(IN) :: N
REAL*8, DIMENSION(MAXNREF_EVALS) :: TEMP
INTEGER :: I
DO I = 1, N ! make a copy
TEMP(I) = X(I)
END DO
CALL SORT(TEMP, N) ! sort the copy
IF (MOD(N,2) == 0) THEN ! compute the median
MEDIAN = (TEMP(N/2) + TEMP(N/2+1)) / 2.0D0
ELSE
MEDIAN = TEMP(N/2+1)
END IF
END FUNCTION MEDIAN
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