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psblas3/base/modules/psb_const_mod.f90

58 lines
2.8 KiB
Fortran

!!$
!!$ 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.
!!$
!!$
module psb_const_mod
!
! This must be the kind parameter corresponding to MPI_DOUBLE_PRECISION
! and MPI_REAL
!
integer, parameter :: psb_dpk_ = kind(1.d0)
integer, parameter :: psb_spk_ = kind(1.e0)
integer :: psb_sizeof_dp, psb_sizeof_int, psb_sizeof_sp
!
! Handy & miscellaneous constants
!
integer, parameter :: izero=0, ione=1
integer, parameter :: itwo=2, ithree=3,mone=-1, psb_root_=0
real(psb_spk_), parameter :: szero=0.e0, sone=1.e0
real(psb_dpk_), parameter :: dzero=0.d0, done=1.d0
complex(psb_spk_), parameter :: czero=(0.e0,0.0e0)
complex(psb_spk_), parameter :: cone=(1.e0,0.0e0)
complex(psb_dpk_), parameter :: zzero=(0.d0,0.0d0)
complex(psb_dpk_), parameter :: zone=(1.d0,0.0d0)
real(psb_dpk_), parameter :: epstol=1.d-32, psb_percent_=0.7
real(psb_spk_), parameter :: s_epstol=1.e-16 ! How to choose this?
character, parameter :: psb_all_='A', psb_topdef_=' '
end module psb_const_mod