psblas2-dev:

base/modules/psb_serial_mod.f90
 base/serial/Makefile
 base/serial/psb_dspscal.f90
 base/serial/psb_dspshift.f90

Added shift routine for usage with eigenvalues. To be done: general
add routine.

base/modules/psb_serial_mod.f90

@@ -432,6 +432,12 @@ module psb_serial_mod
   end interface
 
   interface psb_sp_scal
+     subroutine psb_dspscals(a,d,info)
+       use psb_spmat_type
+       type(psb_dspmat_type), intent(inout) :: a
+       real(psb_dpk_), intent(in) :: d 
+       integer, intent(out)  :: info
+     end subroutine psb_dspscals
      subroutine psb_dspscal(a,d,info)
        use psb_spmat_type
        type(psb_dspmat_type), intent(inout) :: a
@@ -446,6 +452,17 @@ module psb_serial_mod
      end subroutine psb_zspscal
   end interface
 
+
+  interface psb_sp_shift
+    subroutine psb_dspshift(alpha,a,beta,b,info)
+      use psb_spmat_type
+      type(psb_dspmat_type), intent(in)  :: a
+      type(psb_dspmat_type), intent(out) :: b
+      real(psb_dpk_), intent(in)         :: alpha, beta
+      integer, intent(out)               :: info      
+    end subroutine psb_dspshift
+  end interface
+
   interface psb_sp_getblk
      subroutine psb_dspgtblk(irw,a,b,info,append,iren,lrw,srt)
        use psb_spmat_type

base/serial/Makefile

@@ -13,7 +13,8 @@ FOBJS = psb_cest.o psb_dcoins.o psb_dcsmm.o psb_dcsmv.o \
 	psb_zcoins.o psb_zcsprt.o psb_zneigh.o psb_ztransp.o psb_ztransc.o\
 	psb_zrwextd.o psb_zsymbmm.o psb_znumbmm.o psb_zspscal.o psb_zspclip.o\
 	psb_getifield.o psb_setifield.o psb_update_mod.o psb_getrow_mod.o\
-	psb_dgelp.o psb_zgelp.o psb_dcsrp.o psb_zcsrp.o
+	psb_dgelp.o psb_zgelp.o psb_dcsrp.o psb_zcsrp.o\
+	psb_dspshift.o
 
 LIBDIR=..
 MODDIR=../modules

base/serial/psb_dspscal.f90

@@ -96,4 +96,63 @@ subroutine psb_dspscal(a,d,info)
   return
 
 end subroutine psb_dspscal
+subroutine psb_dspscals(a,d,info)
+  ! the input format 
+  use psb_spmat_type
+  use psb_error_mod
+  use psb_const_mod
+  use psb_string_mod
+  implicit none
+
+  type(psb_dspmat_type), intent(inout) :: a
+  integer, intent(out)                 :: info
+  real(psb_dpk_), intent(in)         :: d
+
+  integer :: i,j,err_act
+  character(len=20)                 :: name, ch_err
+
+  name='psb_dspscal'
+  info  = 0
+  call psb_erractionsave(err_act)
+
+  select case(psb_toupper(a%fida(1:3)))
+  case  ('CSR')
+
+    do i=1, a%m
+      do j=a%ia2(i),a%ia2(i+1)-1
+        a%aspk(j) = a%aspk(j) * d
+      end do
+    end do
+
+  case ('COO') 
+
+    do i=1,a%infoa(psb_nnz_)
+      j=a%ia1(i)
+      a%aspk(i) = a%aspk(i) * d
+    enddo
+
+  case ('JAD') 
+    info=135
+    ch_err=a%fida(1:3)
+    call psb_errpush(info,name,a_err=ch_err)
+    goto 9999
+  case default
+    info=136
+    ch_err=a%fida(1:3)
+    call psb_errpush(info,name,a_err=ch_err)
+    goto 9999
+  end select
+
+  call psb_erractionrestore(err_act)
+  return
+
+9999 continue
+  call psb_erractionrestore(err_act)
+  if (err_act == psb_act_abort_) then
+     call psb_error()
+     return
+  end if
+  return
+
+end subroutine psb_dspscals
 

base/serial/psb_dspshift.f90

@@ -0,0 +1,92 @@
+!!$ 
+!!$              Parallel Sparse BLAS  version 2.2
+!!$    (C) Copyright 2006/2007/2008
+!!$                       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.
+!!$ 
+!!$  
+! File:  psb_dspgtblk.f90 
+! Subroutine: psb_dspgtblk
+!    Gets one or more rows from a sparse matrix. 
+! Arguments:
+!*****************************************************************************
+!*                                                                           *
+!* Takes a specified row from matrix A and copies into matrix B (possibly    *
+!*  appending to B). Output is always COO. Input might be anything,          *
+!*                                                                           *
+!*****************************************************************************
+subroutine psb_dspshift(alpha,a,beta,b,info)
+  ! Output is always in  COO format  into B, irrespective of 
+  ! the input format 
+  use psb_spmat_type
+  use psb_const_mod
+  use psb_string_mod
+  use psb_serial_mod, psb_protect_name => psb_dspshift
+
+  implicit none
+
+  type(psb_dspmat_type), intent(in)  :: a
+  type(psb_dspmat_type), intent(out) :: b
+  real(psb_dpk_), intent(in)         :: alpha, beta
+  integer, intent(out)               :: info      
+
+  logical            :: append_,srt_
+  integer            :: i,j, err_act
+  character(len=20)  :: name
+
+  name='psb_sp_shift'
+  info  = 0
+  call psb_erractionsave(err_act)
+
+  call psb_spcnv(a,b,info,afmt='COO')
+  if (info == 0) call psb_sp_scal(b,alpha,info) 
+  call psb_sp_setifld(psb_spmat_bld_,psb_state_,b,info)
+  do i=1,min(b%m,b%k) 
+    if (info == 0) call psb_coins(1,(/i/),(/i/),(/beta/),b,1,1,b%m,b%k,info)
+  end do
+  if (info == 0) call psb_spcnv(b,info,afmt=a%fida,dupl=psb_dupl_add_)
+
+  if (info /= 0) then 
+    call psb_errpush(4010,name,a_err='Internal call')
+    goto 9999
+  end if
+
+  call psb_erractionrestore(err_act)
+
+  return
+
+9999 continue
+  call psb_erractionrestore(err_act)
+  if (err_act == psb_act_abort_) then
+    call psb_error()
+    return
+  end if
+  return
+
+
+end subroutine psb_dspshift
+