1 /* benchtime.h -- compute the timings for the benchmark. 2 3 Copyright (C) 2014 INRIA - CNRS 4 5 This file is part of GNU MPC. 6 7 GNU MPC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU Lesser General Public License as published by the 9 Free Software Foundation; either version 3 of the License, or (at your 10 option) any later version. 11 12 GNU MPC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for 15 more details. 16 17 You should have received a copy of the GNU Lesser General Public License 18 along with this program. If not, see http://www.gnu.org/licenses/ . 19 */ 20 21 22 /* compute the time to run accurately niter calls of the function for any number of inputs */ 23 #define DECLARE_ACCURATE_TIME_NOP(func, funccall) \ 24 unsigned long int ACCURATE_TIME_NOP##func( unsigned long int niter, int n, mpc_t* z, mpc_t* x, mpc_t* y, int nop);\ 25 unsigned long int ACCURATE_TIME_NOP##func( unsigned long int niter, int n, mpc_t* z, mpc_t* x, \ 26 __attribute__ ((__unused__)) mpc_t* y, \ 27 __attribute__ ((__unused__)) int nop)\ 28 { \ 29 unsigned long int i; int kn; \ 30 unsigned long int t0 = get_cputime (); \ 31 for (i = niter, kn=0; i > 0; i--) \ 32 { \ 33 funccall; \ 34 kn++; if (kn==n) kn = 0; \ 35 } \ 36 return get_cputime () - t0; \ 37 } 38 39 /* address of the function to time accurately niter calls of func */ 40 #define ADDR_ACCURATE_TIME_NOP(func) ACCURATE_TIME_NOP##func 41 42 /* address of the function to time one call of func */ 43 #define ADDR_TIME_NOP(func) TIME_NOP##func 44 45 46 /* compute the time to run only one call of the function with two inputs */ 47 #define DECLARE_TIME_NOP(func, funcall, nop) \ 48 DECLARE_ACCURATE_TIME_NOP(func, funcall) \ 49 double TIME_NOP##func(int n, mpc_t* z, mpc_t* x, mpc_t* y); \ 50 double TIME_NOP##func(int n, mpc_t* z, mpc_t* x, mpc_t* y) \ 51 { \ 52 double t; unsigned long int nbcall, mytime; \ 53 for (nbcall = 1, mytime=0; mytime<25000; ) \ 54 { \ 55 nbcall <<= 1; \ 56 mytime = ACCURATE_TIME_NOP##func(nbcall, n, z, x, y, nop); \ 57 } \ 58 t = (double) mytime/ nbcall ; \ 59 return t; \ 60 } 61 62 /* compute the time to run accurately niter calls of the function */ 63 /* functions with 2 operands */ 64 #define DECLARE_TIME_2OP(func) DECLARE_TIME_NOP(func, func(z[kn],x[kn],y[kn], MPC_RNDNN), 2 ) 65 /* functions with 1 operand */ 66 #define DECLARE_TIME_1OP(func) DECLARE_TIME_NOP(func, func(z[kn],x[kn], MPC_RNDNN), 1 ) 67