2013-07-17 19:24:07 +02:00
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/*******************************************************************************
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*
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* TRIQS: a Toolbox for Research in Interacting Quantum Systems
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*
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* Copyright (C) 2011 by O. Parcollet
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*
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* TRIQS is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License along with
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* TRIQS. If not, see <http://www.gnu.org/licenses/>.
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*
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******************************************************************************/
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#ifndef COMMON_TEST_ARRAY_H
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#define COMMON_TEST_ARRAY_H
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Fix matrix * alias issue and adapt det_manip
- The previous version of the * operator for matrix was too clever.
It was giving a lazy object and then rewriting C = A *B into gemm (a,A,B,0,C).
The pb was in case of aliasing : when e.g. C = A, or is a part of A.
gemm is not correct that case, and as a result generic code like
a = a *b
may not be correct in matrix case, which is unacceptable.
- So we revert to a simple * operator for matrix
that does immediate computation.
Same thing for matrix* vector
- we also suppress a_x_ty class.
-> for M = a * b,
when M is a matrix, there is no overhead due to move assignment
-> however, when M is a view, there is an additionnal copy.
-Correctness comes first, hence the fix.
However, if one wants more speed and one can guarantee that
there is no aliasing possible, then one has to write a direct gemm call.
-> det_manip class was adapted, since in that case, we can show there
no alias, and we want the speed gain, so the * ops where replaced
by direct blas call (using the array blas interface).
-> also gemm, gemv, ger were overloaded in the case the return
matrix/vector (i.e. last parameter of the function) is not an lvalue,
but a temporary view created on the fly.
2013-09-10 21:41:17 +02:00
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#include <iostream>
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#include <triqs/arrays.hpp>
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#include <triqs/arrays/asserts.hpp>
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2013-06-25 22:29:14 +02:00
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#include<sstream>
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2013-07-17 19:24:07 +02:00
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#define TEST(X) std::cout << BOOST_PP_STRINGIZE((X)) << " ---> "<< (X) <<std::endl;
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2013-06-25 22:29:14 +02:00
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#define TEST_ASSERT(X) if(!bool(X)) { std::stringstream fs; fs<< "Failed Assertion line "<< __LINE__<< " of file "<< __FILE__<<" :\n"<<BOOST_PP_STRINGIZE((X)); std::cout << fs.str()<< std::endl ; TRIQS_RUNTIME_ERROR<< fs.str();}
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2013-07-17 19:24:07 +02:00
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#define AS_STRING(X) AS_STRING2(X)
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#define AS_STRING2(X) #X
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#endif
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