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Diffstat (limited to 'btl/libs/BLACS/gather.h')
| -rw-r--r-- | btl/libs/BLACS/gather.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/btl/libs/BLACS/gather.h b/btl/libs/BLACS/gather.h new file mode 100644 index 0000000..957f7c7 --- /dev/null +++ b/btl/libs/BLACS/gather.h @@ -0,0 +1,49 @@ +//===================================================== +// Copyright (C) 2011 Andrea Arteaga <andyspiros@gmail.com> +//===================================================== +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License +// as published by the Free Software Foundation; either version 2 +// 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 General Public License for more details. +// You should have received a copy of the GNU General Public License +// along with this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +#ifndef GATHER_H_ +#define GATHER_H_ + +#define TYPENAME float +#define TYPEPREFIX s +#include "gather_impl.h" +#undef TYPENAME +#undef TYPEPREFIX + +#define TYPENAME double +#define TYPEPREFIX d +#include "gather_impl.h" +#undef TYPENAME +#undef TYPEPREFIX + +template<typename T> +static void gather_matrix(std::vector<T>& GlobalMatrix, const std::vector<T>& LocalMatrix, + const int* desc +) { + int GlobalRows = desc[2], GlobalCols = desc[3], + BlockRows = desc[4], BlockCols = desc[5], + LocalRows = desc[8], LocalCols = LocalMatrix.size()/desc[8]; + int ctxt; + { + int ignored, what = 0; + blacs_get_(&ignored, &what, &ctxt); + } + gather(ctxt, GlobalMatrix, LocalMatrix, GlobalRows, GlobalCols, BlockRows, BlockCols, LocalRows, LocalCols); +} + + +#endif /* GATHER_H_ */ |