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psblas3/test/Fileread/getp.f90

183 lines
6.3 KiB
Fortran

!!$
!!$ Parallel Sparse BLAS v2.0
!!$ (C) Copyright 2006 Salvatore Filippone University of Rome Tor Vergata
!!$ Alfredo Buttari University of Rome Tor Vergata
!!$
!!$ Redistribution and use in source and binary forms, with or without
!!$ modification, are permitted provided that the following conditions
!!$ are met:
!!$ 1. Redistributions of source code must retain the above copyright
!!$ notice, this list of conditions and the following disclaimer.
!!$ 2. Redistributions in binary form must reproduce the above copyright
!!$ notice, this list of conditions, and the following disclaimer in the
!!$ documentation and/or other materials provided with the distribution.
!!$ 3. The name of the PSBLAS group or the names of its contributors may
!!$ not be used to endorse or promote products derived from this
!!$ software without specific written permission.
!!$
!!$ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
!!$ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
!!$ TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
!!$ PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PSBLAS GROUP OR ITS CONTRIBUTORS
!!$ BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
!!$ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
!!$ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
!!$ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
!!$ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
!!$ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
!!$ POSSIBILITY OF SUCH DAMAGE.
!!$
!!$
MODULE GETP
PUBLIC GET_PARMS
PUBLIC PR_USAGE
CONTAINS
!
! Get iteration parameters from the command line
!
SUBROUTINE GET_PARMS(ICONTXT,MTRX_FILE,RHS_FILE,CMETHD,IPART,&
& AFMT,ISTOPC,ITMAX,ITRACE,NOVR,IPREC,EPS)
integer :: icontxt
Character*40 :: CMETHD, MTRX_FILE, RHS_FILE
Integer :: IRET, ISTOPC,ITMAX,ITRACE,IPART,IPREC,NOVR
Character*40 :: CHARBUF
real(kind(1.d0)) :: eps
character :: afmt*5
INTEGER :: IARGC, NPROW, NPCOL, MYPROW, MYPCOL
EXTERNAL IARGC
INTEGER :: INPARMS(40), IP
CALL BLACS_GRIDINFO(ICONTXT, NPROW, NPCOL, MYPROW, MYPCOL)
IF (MYPROW==0) THEN
! Read Input Parameters
READ(*,*) IP
IF (IP.GE.3) THEN
READ(*,*) MTRX_FILE
READ(*,*) RHS_FILE
READ(*,*) CMETHD
READ(*,*) AFMT
! Convert strings in array
DO I = 1, LEN(MTRX_FILE)
INPARMS(I) = IACHAR(MTRX_FILE(I:I))
END DO
! Broadcast parameters to all processors
CALL IGEBS2D(ICONTXT,'ALL',' ',40,1,INPARMS,40)
! Convert strings in array
DO I = 1, LEN(CMETHD)
INPARMS(I) = IACHAR(CMETHD(I:I))
END DO
! Broadcast parameters to all processors
CALL IGEBS2D(ICONTXT,'ALL',' ',40,1,INPARMS,40)
DO I = 1, LEN(AFMT)
INPARMS(I) = IACHAR(AFMT(I:I))
END DO
! Broadcast parameters to all processors
CALL IGEBS2D(ICONTXT,'ALL',' ',40,1,INPARMS,40)
READ(*,*) IPART
IF (IP.GE.5) THEN
READ(*,*) ISTOPC
ELSE
ISTOPC=1
ENDIF
IF (IP.GE.6) THEN
READ(*,*) ITMAX
ELSE
ITMAX=500
ENDIF
IF (IP.GE.7) THEN
READ(*,*) ITRACE
ELSE
ITRACE=-1
ENDIF
IF (IP.GE.8) THEN
READ(*,*) IPREC
ELSE
IPREC=0
ENDIF
IF (IP.GE.9) THEN
READ(*,*) NOVR
ELSE
NOVR = 1
ENDIF
IF (IP.GE.10) THEN
READ(*,*) EPS
ELSE
EPS=1.D-6
ENDIF
! Broadcast parameters to all processors
INPARMS(1) = IPART
INPARMS(2) = ISTOPC
INPARMS(3) = ITMAX
INPARMS(4) = ITRACE
INPARMS(5) = IPREC
INPARMS(6) = NOVR
CALL IGEBS2D(ICONTXT,'ALL',' ',6,1,INPARMS,6)
CALL DGEBS2D(ICONTXT,'ALL',' ',1,1,EPS,1)
write(*,'("Solving matrix : ",a40)')mtrx_file
write(*,'("Number of processors : ",i3)')nprow
write(*,'("Data distribution : ",i2)')ipart
write(*,'("Preconditioner : ",i2)')iprec
if(iprec.gt.2) write(*,'("Overlapping levels : ",i2)')novr
write(*,'("Iterative method : ",a40)')cmethd
write(*,'("Storage format : ",a3)')afmt(1:3)
write(*,'(" ")')
else
CALL PR_USAGE(0)
CALL BLACS_ABORT(ICONTXT,-1)
STOP 1
END IF
ELSE
! Receive Parameters
CALL IGEBR2D(ICONTXT,'A',' ',40,1,INPARMS,40,0,0)
DO I = 1, 40
MTRX_FILE(I:I) = ACHAR(INPARMS(I))
END DO
CALL IGEBR2D(ICONTXT,'A',' ',40,1,INPARMS,40,0,0)
DO I = 1, 40
CMETHD(I:I) = ACHAR(INPARMS(I))
END DO
CALL IGEBR2D(ICONTXT,'A',' ',40,1,INPARMS,40,0,0)
DO I = 1, LEN(AFMT)
AFMT(I:I) = ACHAR(INPARMS(I))
END DO
CALL IGEBR2D(ICONTXT,'A',' ',6,1,INPARMS,6,0,0)
IPART = INPARMS(1)
ISTOPC = INPARMS(2)
ITMAX = INPARMS(3)
ITRACE = INPARMS(4)
IPREC = INPARMS(5)
NOVR = INPARMS(6)
CALL DGEBR2D(ICONTXT,'A',' ',1,1,EPS,1,0,0)
END IF
END SUBROUTINE GET_PARMS
SUBROUTINE PR_USAGE(IOUT)
INTEGER IOUT
WRITE(IOUT, *) ' Number of parameters is incorrect!'
WRITE(IOUT, *) ' Use: hb_sample mtrx_file methd prec [ptype &
&itmax istopc itrace]'
WRITE(IOUT, *) ' Where:'
WRITE(IOUT, *) ' mtrx_file is stored in HB format'
WRITE(IOUT, *) ' methd may be: CGSTAB '
WRITE(IOUT, *) ' ptype Partition strategy default 0'
WRITE(IOUT, *) ' 0: BLOCK partition '
WRITE(IOUT, *) ' itmax Max iterations [500] '
WRITE(IOUT, *) ' istopc Stopping criterion [1] '
WRITE(IOUT, *) ' itrace 0 (no tracing, default) or '
WRITE(IOUT, *) ' >= 0 do tracing every ITRACE'
WRITE(IOUT, *) ' iterations '
END SUBROUTINE PR_USAGE
END MODULE GETP