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/* benchtime.h -- compute the timings for the benchmark.
Copyright (C) 2014, INRIA
This file is part of GNU MPC.
GNU MPC 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.
GNU MPC 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/ .
*/
/* compute the time to run accurately niter calls of the function for any number of inputs */
#define DECLARE_ACCURATE_TIME_NOP(func, funccall) \
unsigned long int ACCURATE_TIME_NOP##func( unsigned long int niter, int n, mpc_t* z, mpc_t* x, mpc_t* y, int nop);\
unsigned long int ACCURATE_TIME_NOP##func( unsigned long int niter, int n, mpc_t* z, mpc_t* x, mpc_t* y, int nop)\
{ \
unsigned long int ti, i; int kn; \
unsigned long int t0 = get_cputime (); \
for (i = niter, kn=0; i > 0; i--) \
{ \
funccall; \
kn++; if (kn==n) kn = 0; \
} \
ti = get_cputime () - t0; \
/* following lines are append to avoid warnings but minimize the number of macros*/\
if (nop==2) y = NULL; \
return ti; \
}
/* address of the function to time accurately niter calls of func */
#define ADDR_ACCURATE_TIME_NOP(func) ACCURATE_TIME_NOP##func
/* address of the function to time one call of func */
#define ADDR_TIME_NOP(func) TIME_NOP##func
/* compute the time to run one only call of the function with two inputs */
#define DECLARE_TIME_NOP(func, funcall, nop) \
DECLARE_ACCURATE_TIME_NOP(func, funcall) \
double TIME_NOP##func(int n, mpc_t* z, mpc_t* x, mpc_t* y); \
double TIME_NOP##func(int n, mpc_t* z, mpc_t* x, mpc_t* y) \
{ \
double t; unsigned long int nbcall, mytime; \
for (nbcall = 1, mytime=0; mytime<250000; nbcall<<=1) \
{ \
mytime = ACCURATE_TIME_NOP##func(nbcall, n, z, x, y, nop); \
} \
t = (double) mytime/ nbcall ; \
return t; \
}
/* compute the time to run accurately niter calls of the function */
/* functions with 2 operands */
#define DECLARE_TIME_2OP(func) DECLARE_TIME_NOP(func, func(z[kn],x[kn],y[kn], MPC_RNDNN), 2 )
/* functions with 1 operand */
#define DECLARE_TIME_1OP(func) DECLARE_TIME_NOP(func, func(z[kn],x[kn], MPC_RNDNN), 1 )
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