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Diffstat (limited to 'btl/actions/action_parallel_svd_decomp.hh')
-rw-r--r--btl/actions/action_parallel_svd_decomp.hh151
1 files changed, 151 insertions, 0 deletions
diff --git a/btl/actions/action_parallel_svd_decomp.hh b/btl/actions/action_parallel_svd_decomp.hh
new file mode 100644
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+++ b/btl/actions/action_parallel_svd_decomp.hh
@@ -0,0 +1,151 @@
+//=====================================================
+// 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 ACTION_PARALLEL_SVD_DECOMP_HH_
+#define ACTION_PARALLEL_SVD_DECOMP_HH_
+
+#include "utilities.h"
+#include "init/init_function.hh"
+#include "init/init_vector.hh"
+
+#include "lapack_interface.hh"
+#include "STL_interface.hh"
+
+#include <string>
+#include <algorithm>
+
+template<class Interface>
+class Action_parallel_svd_decomp {
+
+public :
+
+ // Constructor
+ BTL_DONT_INLINE Action_parallel_svd_decomp( int size ) : _size(size)
+ {
+ MESSAGE("Action_parallel_svd_decomp Ctor");
+
+ int myid, procnum;
+ blacs_pinfo_(&myid, &procnum);
+ iamroot = (myid == 0);
+
+ // STL matrix and vector initialization
+ if (iamroot) {
+ init_vector<pseudo_random>(Global_A_stl, size*size);
+ init_vector<pseudo_random>(Global_U_stl, size*size);
+ init_vector<pseudo_random>(Global_V_stl, size*size);
+ }
+ init_vector<null_function>(Local_s_stl, size);
+
+ const int blocksize = std::max(std::min(size/4, 64), 2);
+ Interface::scatter_matrix(Global_A_stl, Local_A_stl, descA, size, size, blocksize, blocksize);
+ Interface::scatter_matrix(Global_U_stl, Local_U_stl, descU, size, size, blocksize, blocksize);
+ Interface::scatter_matrix(Global_V_stl, Local_V_stl, descV, size, size, blocksize, blocksize);
+ LocalRows = descA[8];
+ LocalCols = Local_A_stl.size()/descA[8];
+
+ // Generic local matrix and vectors initialization
+ Interface::matrix_from_stl(Local_A_ref, Local_A_stl);
+ Interface::matrix_from_stl(Local_A , Local_A_stl);
+ Interface::matrix_from_stl(Local_U_ref, Local_U_stl);
+ Interface::matrix_from_stl(Local_U , Local_U_stl);
+ Interface::matrix_from_stl(Local_V_ref, Local_V_stl);
+ Interface::matrix_from_stl(Local_V , Local_V_stl);
+ Interface::vector_from_stl(Local_s_ref, Local_s_stl);
+ Interface::vector_from_stl(Local_s , Local_s_stl);
+
+ _cost = 2.0*size*size*size;
+ }
+
+
+ // Invalidate copy constructor
+ Action_parallel_svd_decomp(const Action_parallel_svd_decomp&)
+ {
+ INFOS("illegal call to Action_parallel_svd_decomp copy constructor");
+ exit(1);
+ }
+
+ // Destructor
+ ~Action_parallel_svd_decomp()
+ {
+ MESSAGE("Action_parallel_svd_decomp destructor");
+
+ // Deallocation
+ Interface::free_matrix(Local_A_ref, Local_A_stl.size());
+ Interface::free_matrix(Local_A , Local_A_stl.size());
+ Interface::free_matrix(Local_U_ref, Local_U_stl.size());
+ Interface::free_matrix(Local_U , Local_U_stl.size());
+ Interface::free_matrix(Local_V_ref, Local_V_stl.size());
+ Interface::free_matrix(Local_V , Local_V_stl.size());
+ Interface::free_vector(Local_s_ref);
+ Interface::free_vector(Local_s );
+ }
+
+ // Action name
+ static inline std::string name()
+ {
+ return "svd_decomp_" + Interface::name();
+ }
+
+ double nb_op_base()
+ {
+ return _cost;
+ }
+
+ BTL_DONT_INLINE void initialize()
+ {
+ Interface::copy_matrix(Local_A_ref, Local_A, Local_A_stl.size());
+ Interface::copy_matrix(Local_U_ref, Local_U, Local_U_stl.size());
+ Interface::copy_matrix(Local_V_ref, Local_V, Local_V_stl.size());
+ Interface::copy_vector(Local_s_ref, Local_s, Local_s_stl.size());
+ }
+
+ BTL_DONT_INLINE void calculate()
+ {
+ Interface::parallel_svd_decomp(Local_A, descA, Local_U, descU, Local_V, descV, Local_s);
+ }
+
+ BTL_DONT_INLINE void check_result()
+ {
+ }
+
+private:
+ int _size, descA[9], descU[9], descV[9], LocalRows, LocalCols;
+ double _cost;
+ bool iamroot;
+
+ typename Interface::stl_matrix Global_A_stl;
+ typename Interface::stl_matrix Local_A_stl;
+ typename Interface::gene_matrix Local_A_ref;
+ typename Interface::gene_matrix Local_A;
+
+ typename Interface::stl_matrix Global_U_stl;
+ typename Interface::stl_matrix Local_U_stl;
+ typename Interface::gene_matrix Local_U_ref;
+ typename Interface::gene_matrix Local_U;
+
+ typename Interface::stl_matrix Global_V_stl;
+ typename Interface::stl_matrix Local_V_stl;
+ typename Interface::gene_matrix Local_V_ref;
+ typename Interface::gene_matrix Local_V;
+
+ typename Interface::stl_vector Local_s_stl;
+ typename Interface::gene_vector Local_s_ref;
+ typename Interface::gene_vector Local_s;
+};
+
+
+#endif /* ACTION_PARALLEL_SVD_DECOMP_HH */