!!$ !!$ Parallel Sparse BLAS version 3.1 !!$ (C) Copyright 2006, 2007, 2008, 2009, 2010, 2012, 2013 !!$ Salvatore Filippone University of Rome Tor Vergata !!$ Alfredo Buttari CNRS-IRIT, Toulouse !!$ !!$ 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. !!$ !!$ program maxA_and_lapl_extremums use psb_base_mod use psb_util_mod use psb_eigen_mod implicit none ! input parameters character(len=100) :: mtrx_file, rhs_file character(len=40) :: kmethd, ptype real (psb_dpk_) :: precisione,sigma integer(psb_ipk_) :: dim_H,to_read ! sparse matrices type(psb_dspmat_type) :: a, b, aux_a ! dense matrices real(psb_dpk_), allocatable, target :: aux_b(:,:), d(:) real(psb_dpk_), allocatable , save :: x_col_glob(:), r_col_glob(:) real(psb_dpk_), pointer :: b_col_glob(:) type(psb_d_vect_type) :: b_col, x_col, r_col complex(psb_dpk_),allocatable :: eig(:),eigmin(:) ! communications data structure type(psb_desc_type):: desc_a integer(psb_ipk_) :: ictxt, iam, np ! solver paramters integer(psb_ipk_) :: iter, itmax, ierr, itrace, ircode, ipart,& & methd, istopc, irst, nr integer(psb_long_int_k_) :: amatsize, descsize, annz, nbytes real(psb_dpk_) :: err, eps,cond character(len=5) :: afmt character(len=20) :: name character(len=2) :: filefmt integer(psb_ipk_), parameter :: iunit=12 integer(psb_ipk_) :: times=0 integer(psb_ipk_) :: iparm(20) ! other variables integer(psb_ipk_) :: i,info,j,m_problem integer(psb_ipk_) :: nnzero real(psb_dpk_) :: t1, t2, t3, t4 real(psb_dpk_) :: lambda, lambda2, norm integer(psb_ipk_) :: nrhs, nrow, n_row, dim, nv, ne integer(psb_ipk_), allocatable :: ivg(:), ipv(:) call psb_init(ictxt) call psb_info(ictxt,iam,np) if (iam < 0) then ! This should not happen, but just in case call psb_exit(ictxt) stop endif name='power_file' if(psb_get_errstatus() /= 0) goto 9999 info=psb_success_ call psb_set_errverbosity(2) ! ! Hello world ! if (iam == psb_root_) then write(*,*) 'This is the ',trim(name),' sample program' read(psb_inp_unit,*) to_read read(psb_inp_unit,*) mtrx_file read(psb_inp_unit,*) filefmt read(psb_inp_unit,*) ipart read(psb_inp_unit,*) precisione read(psb_inp_unit,*) dim_H read(psb_inp_unit,*) sigma read(psb_inp_unit,*) ptype read(psb_inp_unit,*) kmethd end if call psb_bcast(ictxt,to_read) call psb_bcast(ictxt,mtrx_file) call psb_bcast(ictxt,filefmt) call psb_bcast(ictxt,ipart) call psb_bcast(ictxt,precisione) call psb_bcast(ictxt,dim_H) call psb_bcast(ictxt,sigma) call psb_bcast(ictxt,ptype) call psb_bcast(ictxt,kmethd) rhs_file = 'NONE' afmt = 'CSR' call psb_barrier(ictxt) t1 = psb_wtime() ! read the input matrix to be processed and (possibly) the rhs nrhs = 1 if (iam==psb_root_) then select case(psb_toupper(filefmt)) case('MM') ! For Matrix Market we have an input file for the matrix ! and an (optional) second file for the RHS. call mm_mat_read(aux_a,info,iunit=iunit,filename=mtrx_file) if (info == psb_success_) then if (rhs_file /= 'NONE') then call mm_array_read(aux_b,info,iunit=iunit,filename=rhs_file) end if end if case ('HB') ! For Harwell-Boeing we have a single file which may or may not ! contain an RHS. call hb_read(aux_a,info,iunit=iunit,b=aux_b,filename=mtrx_file) case ('AD') call special_adj_read(aux_a,mtrx_file,to_read,iunit,info) case default info = -1 write(psb_err_unit,*) 'Wrong choice for fileformat ', filefmt end select if (info /= psb_success_) then write(psb_err_unit,*) 'Error while reading input matrix ' call psb_abort(ictxt) end if m_problem = aux_a%get_nrows() call psb_bcast(ictxt,m_problem) ! At this point aux_b may still be unallocated if (psb_size(aux_b,dim=1)==m_problem) then ! if any rhs were present, broadcast the first one write(psb_err_unit,'("Ok, got an rhs ")') b_col_glob =>aux_b(:,1) else call psb_realloc(m_problem,1,aux_b,ircode) if (ircode /= 0) then call psb_errpush(psb_err_alloc_dealloc_,name) goto 9999 endif b_col_glob => aux_b(:,1) do i=1, m_problem b_col_glob(i) = 1.d0 enddo endif call psb_bcast(ictxt,b_col_glob(1:m_problem)) else call psb_bcast(ictxt,m_problem) call psb_realloc(m_problem,1,aux_b,ircode) if (ircode /= 0) then call psb_errpush(psb_err_alloc_dealloc_,name) goto 9999 endif b_col_glob =>aux_b(:,1) call psb_bcast(ictxt,b_col_glob(1:m_problem)) end if ! switch over different partition types if (ipart == 0) then call psb_barrier(ictxt) allocate(ivg(m_problem),ipv(np)) do i=1,m_problem call part_block(i,m_problem,np,ipv,nv) ivg(i) = ipv(1) enddo call psb_matdist(aux_a, a,ictxt, & & desc_a,b_col_glob,b_col,info,fmt=afmt,v=ivg) else if (ipart == 2) then if (iam==psb_root_) then call build_mtpart(aux_a,np) endif call psb_barrier(ictxt) call distr_mtpart(psb_root_,ictxt) call getv_mtpart(ivg) call psb_matdist(aux_a, a, ictxt, & & desc_a,b_col_glob,b_col,info,fmt=afmt,v=ivg) else call psb_matdist(aux_a, a, ictxt, & & desc_a,b_col_glob,b_col,info,fmt=afmt,parts=part_block) end if call psb_barrier(ictxt) call psb_d_power_vect(a,x_col,lambda,precisione,iter,500,desc_a,info) t2 = psb_wtime() - t1 t1 = psb_wtime() call psb_d_laplacian(a,b) call psb_d_arnoldi(b,dim_H,eig,desc_a,ictxt,info) t3 = psb_wtime()-t1 t1 = psb_wtime() call psb_d_shift_invert(b,dim_H,sigma,eigmin,ptype,kmethd,desc_a,ictxt,iam,info) call psb_barrier(ictxt) t4 = psb_wtime() - t1 t1=t2+t3+t4 if (iam==psb_root_) then open (15, FILE="plot_data.dat", position = 'append',ACTION="WRITE") write (15,'(i20,F20.6,F20.6,F20.6,F20.6,F20.4)')aux_a%get_nzeros(),lambda,real(eig(dim_H)),real(eig(dim_H-1)),& &real(eigmin(dim_H-1)),t1 close(15) end if call psb_gefree(b_col, desc_a,info) call psb_gefree(x_col, desc_a,info) call psb_spfree(a, desc_a,info) call psb_spfree(b, desc_a,info) call psb_spfree(aux_a, desc_a,info) call psb_cdfree(desc_a,info) 9999 continue if(info /= 0) then call psb_error(ictxt) end if call psb_exit(ictxt) stop contains subroutine special_adj_read (a,filename,nnzero,iunit,info) use psb_base_mod use psb_eigen_mod, psb_protect_name => psb_d_adj_read type(psb_dspmat_type), intent (inout) :: a character(len=40) , intent(in):: filename integer (psb_ipk_),intent(in) :: iunit integer (psb_ipk_),intent(out) :: info ! reads a file containing the coordinate description of an adjacence ! sparse matrix (values are always 1) and stores it into 'a' ! ! on entry : ! filename : file containing the description of the matrix ! nnzero : number of elements you want to read integer(psb_ipk_) :: i,nnzero,nrows type(psb_d_coo_sparse_mat) :: acoo open(iunit, FILE=filename, STATUS="OLD", ACTION="READ") read(iunit, *) nrows call acoo%allocate(nrows,nrows,nnzero) do i = 1,nnzero read(iunit, *) acoo%ia(i),acoo%ja(i) acoo%val(i)=1.0 end do close(UNIT=iunit) call acoo%set_nzeros(nnzero) call acoo%fix(info) call a%mv_from(acoo) call a%cscnv(info,type='csr') end subroutine special_adj_read end program maxA_and_lapl_extremums