MIDAPACK - MIcrowave Data Analysis PACKage  1.1b
Parallel software tools for high performance CMB DA analysis
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toeplitz_block.c File Reference

Contains routines related to the Toeplitz blocks diagonal routine for Toeplitz algebra. More...

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Functions

int mpi_stbmm (double **V, int64_t nrow, int m, int m_rowwise, Block *tpltzblocks, int nb_blocks_local, int nb_blocks_all, int64_t idp, int local_V_size, Flag flag_stgy, MPI_Comm comm)
 Performs the multiplication of a symmetric, Toeplitz block-diagonal matrix, T, by an arbitrary matrix, V, distributed over processes in the generalized column-wise way.

Detailed Description

Contains routines related to the Toeplitz blocks diagonal routine for Toeplitz algebra.

version 1.1b, July 2012

Author:
Frederic Dauvergne, Radek Stompor

Project: Midapack library, ANR MIDAS'09 - Toeplitz Algebra module Purpose: Provide Toeplitz algebra tools suitable for Cosmic Microwave Background (CMB) data analysis.

Note:
Copyright (c) 2010-2012 APC CNRS Université Paris Diderot
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU Lesser General Public License as published by the Free Software Foundation;
either version 3 of the License, or (at your option) any later version. This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along with this
program; if not, see http://www.gnu.org/licenses/lgpl.html
For more information about ANR MIDAS'09 project see :
http://www.apc.univ-paris7.fr/APC_CS/Recherche/Adamis/MIDAS09/index.html
ACKNOWLEDGMENT: This work has been supported in part by the French National Research
Agency (ANR) through COSINUS program (project MIDAS no. ANR-09-COSI-009).

Log: toeplitz*.c

Revision 1.0b 2012/05/07 Frederic Dauvergne (APC) Official release 1.0beta. The first installement of the library is the Toeplitz algebra module.

Revision 1.1b 2012/07/- Frederic Dauvergne (APC)

  • mpi_stbmm allows now rowi-wise order per process datas and no-blocking communications.
  • OMP improvment for optimal cpu time.
  • bug fixed for OMP in the stmm_basic routine.
  • distcorrmin is used to communicate only lambda-1 datas when it is needed.
  • new reshaping routines using transformation functions in stmm. Thus, only one copy at most is needed.
  • tpltz_init improvement using define_nfft and define_blocksize routines.
  • add Block struture to define each Toeplitz block.
  • add Flag structure and preprocessing parameters to define the computational strategy. All the flag parameters are then available directly from the API.

Definition in file toeplitz_block.c.