From 0007a0b0c11fa7c12b228883453368f105a4324b Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Thu, 16 Nov 2017 13:11:07 +0100 Subject: Initial commit. The following code is present: * the basis API * the BiCGSTAB solver * the pseudospectral linear system solver * helper APIs: - threadpool - logging - cpuid --- common.h | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 common.h (limited to 'common.h') diff --git a/common.h b/common.h new file mode 100644 index 0000000..16dd7ef --- /dev/null +++ b/common.h @@ -0,0 +1,42 @@ +/* + * Copyright 2017 Anton Khirnov + * + * 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 3 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, see . + */ + +#ifndef TEUKOLSKY_DATA_COMMON_H +#define TEUKOLSKY_DATA_COMMON_H + +#define SQR(x) ((x) * (x)) +#define SGN(x) ((x) >= 0.0 ? 1.0 : -1.0) +#define MAX(x, y) ((x) > (y) ? (x) : (y)) +#define MIN(x, y) ((x) > (y) ? (y) : (x)) +#define ARRAY_ELEMS(arr) (sizeof(arr) / sizeof(*arr)) + +/* + * small number to avoid r=0 singularities + */ +#define EPS 1E-08 + +#include +#include +#include +static inline int64_t gettime(void) +{ + struct timeval tv; + gettimeofday(&tv, NULL); + return (int64_t)tv.tv_sec * 1000000 + tv.tv_usec; +} + +#endif /* TEUKOLSKY_DATA_COMMON_H */ -- cgit v1.2.3