mirror of
https://github.com/sfilippone/psblas3.git
synced 2026-10-20 12:52:14 +00:00
Fixed default for precset.
This commit is contained in:
Salvatore Filippone
+210
-208
@@ -102,18 +102,18 @@ program pde90
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integer, pointer :: work(:)
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! blacs parameters
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integer :: ictxt, iam, np
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! solver parameters
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integer :: iter, itmax,ierr,itrace, methd,iprec, istopc,&
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& iparm(20), ml, novr
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real(kind(1.d0)) :: err, eps, rparm(20)
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! other variables
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integer :: i,info
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integer :: internal, m,ii
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character(len=10) :: ptype
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character(len=20) :: name,ch_err
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if(psb_get_errstatus().ne.0) goto 9999
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info=0
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name='pde90'
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@@ -134,7 +134,7 @@ program pde90
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! get parameters
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!
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call get_parms(ictxt,cmethd,iprec,novr,afmt,idim,istopc,itmax,itrace,ml)
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!
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! allocate and fill in the coefficient matrix, rhs and initial guess
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!
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@@ -144,10 +144,10 @@ program pde90
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call create_matrix(idim,a,b,x,desc_a,part_block,ictxt,afmt,info)
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t2 = mpi_wtime() - t1
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if(info.ne.0) then
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info=4010
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ch_err='create_matrix'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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info=4010
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ch_err='create_matrix'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call gamx2d(ictxt,'a',t2)
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@@ -160,35 +160,37 @@ program pde90
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if(iam.eq.psb_root_) write(0,'("Setting preconditioner to : ",a)')pr_to_str(iprec)
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select case(iprec)
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case(noprec_)
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call psb_precset(pre,'noprec')
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call psb_precset(pre,'noprec')
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case(diagsc_)
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call psb_precset(pre,'diagsc')
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call psb_precset(pre,'diagsc')
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case(bja_)
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call psb_precset(pre,'ilu')
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call psb_precset(pre,'ilu')
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case(asm_)
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call psb_precset(pre,'asm',iv=(/novr,halo_,sum_/))
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call psb_precset(pre,'asm',iv=(/novr,halo_,sum_/))
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case(ash_)
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call psb_precset(pre,'asm',iv=(/novr,nohalo_,sum_/))
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call psb_precset(pre,'asm',iv=(/novr,nohalo_,sum_/))
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case(ras_)
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call psb_precset(pre,'asm',iv=(/novr,halo_,none_/))
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call psb_precset(pre,'asm',iv=(/novr,halo_,none_/))
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case(rash_)
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call psb_precset(pre,'asm',iv=(/novr,nohalo_,none_/))
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call psb_precset(pre,'asm',iv=(/novr,nohalo_,none_/))
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case default
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call psb_precset(pre,'ilu')
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end select
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call psb_barrier(ictxt)
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t1 = mpi_wtime()
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call psb_precbld(a,desc_a,pre,info)
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if(info.ne.0) then
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info=4010
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ch_err='psb_precbld'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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info=4010
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ch_err='psb_precbld'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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tprec = mpi_wtime()-t1
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call gamx2d(ictxt,'a',tprec)
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if (iam.eq.0) write(*,'("Preconditioner time : ",es10.4)')tprec
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if (iam.eq.0) write(*,'(" ")')
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@@ -216,23 +218,23 @@ program pde90
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end if
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if(info.ne.0) then
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info=4010
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ch_err='solver routine'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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info=4010
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ch_err='solver routine'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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call psb_barrier(ictxt)
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t2 = mpi_wtime() - t1
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call gamx2d(ictxt,'a',t2)
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if (iam.eq.0) then
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write(*,'(" ")')
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write(*,'("Time to solve matrix : ",es10.4)')t2
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write(*,'("Time per iteration : ",es10.4)')t2/iter
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write(*,'("Number of iterations : ",i0)')iter
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write(*,'("Error on exit : ",es10.4)')err
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write(*,'("Info on exit : ",i0)')info
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write(*,'(" ")')
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write(*,'("Time to solve matrix : ",es10.4)')t2
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write(*,'("Time per iteration : ",es10.4)')t2/iter
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write(*,'("Number of iterations : ",i0)')iter
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write(*,'("Error on exit : ",es10.4)')err
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write(*,'("Info on exit : ",i0)')info
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end if
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!
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@@ -244,15 +246,15 @@ program pde90
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call psb_precfree(pre,info)
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call psb_cdfree(desc_a,info)
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if(info.ne.0) then
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info=4010
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ch_err='free routine'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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info=4010
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ch_err='free routine'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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9999 continue
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if(info /= 0) then
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call psb_error(ictxt)
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call psb_error(ictxt)
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end if
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call psb_exit(ictxt)
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stop
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@@ -269,104 +271,104 @@ contains
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integer :: iargc, np, iam
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external iargc
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integer :: intbuf(10), ip
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call psb_info(ictxt, iam, np)
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if (iam==0) then
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read(*,*) ip
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if (ip.ge.3) then
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read(*,*) cmethd
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read(*,*) iprec
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read(*,*) novr
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read(*,*) afmt
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read(*,*) ip
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if (ip.ge.3) then
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read(*,*) cmethd
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read(*,*) iprec
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read(*,*) novr
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read(*,*) afmt
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! convert strings in array
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do i = 1, len(cmethd)
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intbuf(i) = iachar(cmethd(i:i))
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end do
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do i = 1, len(cmethd)
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intbuf(i) = iachar(cmethd(i:i))
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end do
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! broadcast parameters to all processors
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call igebs2d(ictxt,'ALL',' ',10,1,intbuf,10)
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! broadcast parameters to all processors
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call igebs2d(ictxt,'ALL',' ',1,1,iprec,10)
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call igebs2d(ictxt,'ALL',' ',10,1,intbuf,10)
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! broadcast parameters to all processors
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call igebs2d(ictxt,'ALL',' ',1,1,novr,10)
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do i = 1, len(afmt)
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intbuf(i) = iachar(afmt(i:i))
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end do
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call igebs2d(ictxt,'ALL',' ',1,1,iprec,10)
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! broadcast parameters to all processors
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call igebs2d(ictxt,'ALL',' ',10,1,intbuf,10)
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read(*,*) idim
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if (ip.ge.4) then
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read(*,*) istopc
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else
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istopc=1
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endif
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if (ip.ge.5) then
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read(*,*) itmax
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else
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itmax=500
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endif
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if (ip.ge.6) then
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read(*,*) itrace
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else
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itrace=-1
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endif
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if (ip.ge.7) then
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read(*,*) ml
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else
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ml=1
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endif
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call igebs2d(ictxt,'ALL',' ',1,1,novr,10)
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do i = 1, len(afmt)
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intbuf(i) = iachar(afmt(i:i))
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end do
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! broadcast parameters to all processors
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call igebs2d(ictxt,'ALL',' ',10,1,intbuf,10)
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read(*,*) idim
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if (ip.ge.4) then
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read(*,*) istopc
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else
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istopc=1
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endif
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if (ip.ge.5) then
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read(*,*) itmax
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else
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itmax=500
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endif
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if (ip.ge.6) then
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read(*,*) itrace
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else
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itrace=-1
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endif
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if (ip.ge.7) then
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read(*,*) ml
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else
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ml=1
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endif
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! broadcast parameters to all processors
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intbuf(1) = idim
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intbuf(2) = istopc
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intbuf(3) = itmax
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intbuf(4) = itrace
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intbuf(5) = ml
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call igebs2d(ictxt,'ALL',' ',5,1,intbuf,5)
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write(*,'("Solving matrix : ell1")')
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write(*,'("Grid dimensions : ",i4,"x",i4,"x",i4)')idim,idim,idim
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write(*,'("Number of processors : ",i0)')np
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write(*,'("Data distribution : BLOCK")')
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write(*,'("Preconditioner : ",a)')pr_to_str(iprec)
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if(iprec.gt.2) write(*,'("Overlapping levels : ",i0)')novr
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write(*,'("Iterative method : ",a)')cmethd
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write(*,'(" ")')
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else
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intbuf(1) = idim
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intbuf(2) = istopc
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intbuf(3) = itmax
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intbuf(4) = itrace
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intbuf(5) = ml
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call igebs2d(ictxt,'ALL',' ',5,1,intbuf,5)
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write(*,'("Solving matrix : ell1")')
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write(*,'("Grid dimensions : ",i4,"x",i4,"x",i4)')idim,idim,idim
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write(*,'("Number of processors : ",i0)')np
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write(*,'("Data distribution : BLOCK")')
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write(*,'("Preconditioner : ",a)')pr_to_str(iprec)
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if(iprec.gt.2) write(*,'("Overlapping levels : ",i0)')novr
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write(*,'("Iterative method : ",a)')cmethd
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write(*,'(" ")')
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else
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! wrong number of parameter, print an error message and exit
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call pr_usage(0)
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call blacs_abort(ictxt,-1)
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stop 1
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endif
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call pr_usage(0)
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call blacs_abort(ictxt,-1)
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stop 1
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endif
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else
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! receive parameters
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call igebr2d(ictxt,'ALL',' ',10,1,intbuf,10,0,0)
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do i = 1, 10
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cmethd(i:i) = achar(intbuf(i))
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end do
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! receive parameters
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call igebr2d(ictxt,'ALL',' ',10,1,intbuf,10,0,0)
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do i = 1, 10
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cmethd(i:i) = achar(intbuf(i))
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end do
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call igebr2d(ictxt,'ALL',' ',1,1,iprec,10,0,0)
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call igebr2d(ictxt,'ALL',' ',1,1,iprec,10,0,0)
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call igebr2d(ictxt,'ALL',' ',1,1,novr,10,0,0)
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call igebr2d(ictxt,'ALL',' ',1,1,novr,10,0,0)
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call igebr2d(ictxt,'ALL',' ',10,1,intbuf,10,0,0)
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do i = 1, 5
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afmt(i:i) = achar(intbuf(i))
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end do
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call igebr2d(ictxt,'ALL',' ',5,1,intbuf,5,0,0)
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idim = intbuf(1)
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istopc = intbuf(2)
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itmax = intbuf(3)
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itrace = intbuf(4)
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ml = intbuf(5)
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call igebr2d(ictxt,'ALL',' ',10,1,intbuf,10,0,0)
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do i = 1, 5
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afmt(i:i) = achar(intbuf(i))
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end do
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call igebr2d(ictxt,'ALL',' ',5,1,intbuf,5,0,0)
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idim = intbuf(1)
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istopc = intbuf(2)
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itmax = intbuf(3)
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itrace = intbuf(4)
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ml = intbuf(5)
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end if
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return
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end subroutine get_parms
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!
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! print an error message
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@@ -389,10 +391,10 @@ contains
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write(iout,*)' iterations '
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end subroutine pr_usage
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!
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! subroutine to allocate and fill in the coefficient matrix and
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! the rhs.
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!
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!
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! subroutine to allocate and fill in the coefficient matrix and
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! the rhs.
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!
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subroutine create_matrix(idim,a,b,t,desc_a,parts,ictxt,afmt,info)
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!
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! discretize the partial diferential equation
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@@ -455,7 +457,7 @@ contains
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info = 0
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name = 'create_matrix'
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call psb_erractionsave(err_act)
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call psb_info(ictxt, iam, np)
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deltah = 1.d0/(idim-1)
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@@ -474,10 +476,10 @@ contains
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call psb_geall(b,desc_a,info)
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call psb_geall(t,desc_a,info)
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if(info.ne.0) then
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info=4010
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ch_err='allocation rout.'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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info=4010
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ch_err='allocation rout.'
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call psb_errpush(info,name,a_err=ch_err)
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goto 9999
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end if
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! we build an auxiliary matrix consisting of one row at a
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@@ -487,9 +489,9 @@ contains
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allocate(val(20*nbmax),irow(20*nbmax),&
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&icol(20*nbmax),prv(np),stat=info)
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if (info.ne.0 ) then
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info=4000
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call psb_errpush(info,name)
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goto 9999
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info=4000
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call psb_errpush(info,name)
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goto 9999
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endif
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tins = 0.d0
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@@ -499,7 +501,7 @@ contains
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! loop over rows belonging to current process in a block
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! distribution.
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! icol(1)=1
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! icol(1)=1
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do glob_row = 1, n
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call parts(glob_row,n,np,prv,nv)
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do inv = 1, nv
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@@ -531,48 +533,48 @@ contains
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! term depending on (x-1,y,z)
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!
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if (x==1) then
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val(element)=-b1(glob_x,glob_y,glob_z)&
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& -a1(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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zt(1) = exp(-glob_y**2-glob_z**2)*(-val(element))
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val(element)=-b1(glob_x,glob_y,glob_z)&
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& -a1(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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zt(1) = exp(-glob_y**2-glob_z**2)*(-val(element))
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else
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val(element)=-b1(glob_x,glob_y,glob_z)&
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& -a1(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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icol(element)=(x-2)*idim*idim+(y-1)*idim+(z)
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element=element+1
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val(element)=-b1(glob_x,glob_y,glob_z)&
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& -a1(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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icol(element)=(x-2)*idim*idim+(y-1)*idim+(z)
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element=element+1
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endif
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! term depending on (x,y-1,z)
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if (y==1) then
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val(element)=-b2(glob_x,glob_y,glob_z)&
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& -a2(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
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val(element)=-b2(glob_x,glob_y,glob_z)&
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& -a2(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
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& deltah)
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zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
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else
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val(element)=-b2(glob_x,glob_y,glob_z)&
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& -a2(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
|
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& deltah)
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icol(element)=(x-1)*idim*idim+(y-2)*idim+(z)
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element=element+1
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val(element)=-b2(glob_x,glob_y,glob_z)&
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& -a2(glob_x,glob_y,glob_z)
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val(element) = val(element)/(deltah*&
|
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& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y-2)*idim+(z)
|
||||
element=element+1
|
||||
endif
|
||||
! term depending on (x,y,z-1)
|
||||
if (z==1) then
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)&
|
||||
& -a3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)&
|
||||
& -a3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
else
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)&
|
||||
& -a3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y-1)*idim+(z-1)
|
||||
element=element+1
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)&
|
||||
& -a3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y-1)*idim+(z-1)
|
||||
element=element+1
|
||||
endif
|
||||
! term depending on (x,y,z)
|
||||
val(element)=2*b1(glob_x,glob_y,glob_z)&
|
||||
@@ -587,37 +589,37 @@ contains
|
||||
element=element+1
|
||||
! term depending on (x,y,z+1)
|
||||
if (z==idim) then
|
||||
val(element)=-b1(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
val(element)=-b1(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
else
|
||||
val(element)=-b1(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y-1)*idim+(z+1)
|
||||
element=element+1
|
||||
val(element)=-b1(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y-1)*idim+(z+1)
|
||||
element=element+1
|
||||
endif
|
||||
! term depending on (x,y+1,z)
|
||||
if (y==idim) then
|
||||
val(element)=-b2(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
val(element)=-b2(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
zt(1) = exp(-glob_y**2-glob_z**2)*exp(-glob_x)*(-val(element))
|
||||
else
|
||||
val(element)=-b2(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y)*idim+(z)
|
||||
element=element+1
|
||||
val(element)=-b2(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x-1)*idim*idim+(y)*idim+(z)
|
||||
element=element+1
|
||||
endif
|
||||
! term depending on (x+1,y,z)
|
||||
if (x<idim) then
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x)*idim*idim+(y-1)*idim+(z)
|
||||
element=element+1
|
||||
val(element)=-b3(glob_x,glob_y,glob_z)
|
||||
val(element) = val(element)/(deltah*&
|
||||
& deltah)
|
||||
icol(element)=(x)*idim*idim+(y-1)*idim+(z)
|
||||
element=element+1
|
||||
endif
|
||||
irow(1:element-1)=glob_row
|
||||
ia=glob_row
|
||||
@@ -639,10 +641,10 @@ contains
|
||||
t2 = mpi_wtime()-t1
|
||||
|
||||
if(info.ne.0) then
|
||||
info=4010
|
||||
ch_err='insert rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
info=4010
|
||||
ch_err='insert rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
deallocate(val,irow,icol)
|
||||
@@ -653,10 +655,10 @@ contains
|
||||
call psb_barrier(ictxt)
|
||||
tasb = mpi_wtime()-t1
|
||||
if(info.ne.0) then
|
||||
info=4010
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
info=4010
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call gamx2d(ictxt,'a',t2)
|
||||
@@ -664,29 +666,29 @@ contains
|
||||
call gamx2d(ictxt,'a',tasb)
|
||||
|
||||
if(iam.eq.psb_root_) then
|
||||
write(*,'("The matrix has been generated and assembeld in ",a3," format.")')a%fida(1:3)
|
||||
write(*,'("-pspins time : ",es10.4)')tins
|
||||
write(*,'("-insert time : ",es10.4)')t2
|
||||
write(*,'("-assembly time : ",es10.4)')tasb
|
||||
write(*,'("The matrix has been generated and assembeld in ",a3," format.")')a%fida(1:3)
|
||||
write(*,'("-pspins time : ",es10.4)')tins
|
||||
write(*,'("-insert time : ",es10.4)')t2
|
||||
write(*,'("-assembly time : ",es10.4)')tasb
|
||||
end if
|
||||
|
||||
call psb_geasb(b,desc_a,info)
|
||||
call psb_geasb(t,desc_a,info)
|
||||
if(info.ne.0) then
|
||||
info=4010
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
info=4010
|
||||
ch_err='asb rout.'
|
||||
call psb_errpush(info,name,a_err=ch_err)
|
||||
goto 9999
|
||||
end if
|
||||
|
||||
call psb_erractionrestore(err_act)
|
||||
return
|
||||
|
||||
|
||||
9999 continue
|
||||
call psb_erractionrestore(err_act)
|
||||
if (err_act.eq.act_abort) then
|
||||
call psb_error(ictxt)
|
||||
return
|
||||
call psb_error(ictxt)
|
||||
return
|
||||
end if
|
||||
return
|
||||
end subroutine create_matrix
|
||||
|
||||
Reference in New Issue
Block a user