arb/arb_mat/sqr.c

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2015-11-23 15:00:19 -05:00
/*=============================================================================
This file is part of ARB.
ARB 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.
ARB 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 ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2015 Arb authors
******************************************************************************/
#include "arb_mat.h"
void
arb_mat_sqr(arb_mat_t B, const arb_mat_t A, slong prec)
{
double d = (double) arb_mat_nrows(A);
if (flint_get_num_threads() > 1 && d*d*d * (double) prec > 100000)
{
arb_mat_mul_threaded(B, A, A, prec); /* todo: sqr threaded */
}
else
{
arb_mat_sqr_classical(B, A, prec);
}
}