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* Improve argument nameeschnett2013-08-21
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@5042 17b73243-c579-4c4c-a9d2-2d5706c11dac
* expand error message for CCTK_DISABLE_OMP_COLLAPSE to contain instructions ↵rhaas2013-08-06
| | | | | | for fix git-svn-id: http://svn.cactuscode.org/flesh/trunk@5039 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Add CCTK_BUILTIN_ASSUME_ALIGNEDeschnett2013-07-07
| | | | | | | | | This checks whether the GCC extension __builtin_assume_aligned is available, which can generate more efficient code when accessing data via pointers. git-svn-id: http://svn.cactuscode.org/flesh/trunk@5033 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Auto-configure static_asserteschnett2013-05-20
| | | | | | | | Check whether static_assert is supported by C++. Define a work-around if it is not supported. git-svn-id: http://svn.cactuscode.org/flesh/trunk@5014 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Workaround for compiler-bug with Intel compiler and 'restrict'.knarf2013-05-06
| | | | | | | | | | | | | | | | | | | | | See https://trac.einsteintoolkit.org/ticket/1276 Add conditional on the version of the (Intel) compiler for all CCODE. Then, for C and CXX separately, skip the autoconf-provided values for 'restrict' if the compiler was found to be bad, and instead let HAVE_CCTK_CXX_RESTRICT remain undefined and set CCTK_CXX_RESTRICT to empty, which later defines 'restrict' to empty too (similarly for C). Because someone might actually want to overwrite this, CCTK_INTEL_COMPILER_DONT_DISABLE_RESTRICT is checked, and if set, doesn't disable restrict even for bad compilers. Also, now all Intel compilers with build dates between 20121010 and 20130313 are flagged 'bad'. Others might need to be added later. git-svn-id: http://svn.cactuscode.org/flesh/trunk@5001 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Correct autoconf of __builtin_unreachable()eschnett2013-03-05
| | | | | | | | Correct autodetection of __builtin_unreachable() Correct fallback implementation of CCTK_BUILTIN_UNREACHABLE git-svn-id: http://svn.cactuscode.org/flesh/trunk@4976 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Use C (instead of C++) autoconf results in some caseseschnett2013-03-04
| | | | | | | Some C++ autoconf results were erroneously used for C code. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4971 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Improve fall-back for __builtin_unreachable()eschnett2013-02-26
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4965 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Implement CCTK_Error and friendseschnett2013-02-26
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4962 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Support IBM Blue Gene compilerseschnett2013-01-27
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4949 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Make CCTK_REAL16 more flexibleeschnett2013-01-15
| | | | | | | | | Instead of assuming that CCTK_REAL16 is real*16 in Fortran, allow any real*N for user-specified values of N. This enables using CCTK_REAL16 e.g. with gcc versions that call it real*10. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4935 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Autoconf attribute always_inlineeschnett2013-01-15
| | | | | | | | Add autoconf test for __attribute__((__always_inline__)). Improve autoconf test for _Pragma syntax. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4934 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Add configure macro for OpenMP collapse clauseeschnett2012-11-18
| | | | | | | | Disable OpenMP collapse clause for certain versions of the Intel compiler that are known to mis-compile them. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4913 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check availability of isnan in C++eschnett2012-10-22
| | | | | | | | | | Check availability of isnan in C++. Introduce autoconf macros specifying how to call a good version of isnan in any language. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4881 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Enable "restrict" as keyword in C++eschnett2012-05-07
| | | | | | | You can now use "restrict" instead of CCTK_RESTRICT in C++. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4812 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for getpid()eschnett2012-02-28
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4792 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Detect backtrace-related functions during configurationhinder2011-09-22
| | | | | | | | See https://trac.einsteintoolkit.org/ticket/443 Patch by Roland Haas git-svn-id: http://svn.cactuscode.org/flesh/trunk@4726 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Autodetect <sched.h> and sched_getaffinity()eschnett2011-06-28
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4704 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Improve auto-detection of "restrict" keywordeschnett2011-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | Update and improve the auto-detection of the "restrict" keyword; add more test cases to detect more possible failures. Disable testing the array syntax void foo (double A[restrict]); where the "restrict" keyword is given within the square brackets; instead, one can use the pointer syntax void foo (double *restrict const A); which is tested. Add support for the gcc built-in function "builtin_expect", which tells the compiler the value that an expression is most likely to have. Re-enable the (currently commented out) definitions for attribute(hot) and attribute(cold). git-svn-id: http://svn.cactuscode.org/flesh/trunk@4702 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Add CCTK_ATTRIBUTE_ALIGNED, which is auto-configured and expands toeschnett2011-01-04
| | | | | | | | gcc' __attribute__(__aligned__(...)) if present. This is necessary for vectorisation. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4662 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Autoconf CCTK_ATTRIBUTE_NOINLINE, which expands toeschnett2010-12-23
| | | | | | | __attribute__((noinline)) if that is supported by the compiler. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4658 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Detect whether the compiler supports the attributesschnetter2009-11-11
| | | | | | | | | | | | | | | | | | | | | | const pure unused cold hot These attributes can be used to annotate declarations of variables, functions, and member functions to avoid warnings or enable additional optimisations. Detect whether the _Pragma directive is recognised. _Pragma can be used instead of #pragma, but works also inside macros. Update the detection of the static, inline, and restrict qualifiers to catch certain compiler errors, and avoids using these attributes with these compilers. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4578 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Use autoconf to look for system-dependent low-level timing functions.schnetter2008-01-25
| | | | | | | Such timing functions are e.g. used by Carpet. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4457 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Add autoconf macros to detect the header file <malloc.h>, theschnetter2007-05-26
| | | | | | | | functions mallinfo() and mallopt(), and the constant M_MMAP_THRESHOLD. These are e.g. provided by glibc. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4422 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Cactus' autodetection of Fortran's real*16 does currently not work; itschnetter2006-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | always detects it as "not present", even if the message printed to the screen during configuration says "present". The enclosed patch corrects this: Rename the detecting autoconf macro from CCTK_PROG_FORTRAN_REAL16 to CCTK_FORTRAN_REAL16. This follows the usual autoconf naming conventions; see e.g. CCTK_CXX_BOOL. Also rename the return value (a global variable) from fortran_does_real16 to cctk_cv_have_fortran_real16. In this macro, use the function AC_TRY_COMPILE instead of AC_TRY_COMPILER. The difference is that this then only compiles, it does not try to link and execute. Executing would require handling cross-compiling in a special way. Replace the autoconf macro AC_TRY_COMPILE by CCTK_TRY_COMPILE, correcting an error in handling Fortran programmes. AC_TRY_COMPILE does not work for Fortran in autoconf 2.13. Move setting the compiler debug and warning flags further up in configure.in, so that the Fortran 77 compiler flags, which may be copied from the Fortran 90 compiler flags, are correct when the Fortran types are detected. Otherwise the wrong Fortran 77 compiler may be used for this test. Add autodetection for all the Fortran types real*4, real*8, real*16, complex*8, complex*16, and complex*32. Make this result available to thorns as HAVE_CCTK_FORTRAN_xxx. Define the CCTK_REALxxx and HAVE_CCTK_REALxxx macros only if the corresponding real and complex types are available in both C and Fortran. Remove some leftover debugging statements. Tested on Darwin-x86 with gcc and Linux-x86 with Intel. Touche force-reconfigure. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4351 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Fix from Erik Schnetter so that CCTK_RESTRICT works when 'restrict'goodale2005-12-13
| | | | | | | is actually 'restrict'. git-svn-id: http://svn.cactuscode.org/flesh/trunk@4211 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Undo changes that prevent more unwanted warnings about unused variables.schnetter2005-09-28
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4155 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Introduce macros CCTK_DECLARE and CCTK_DECLARE_INIT which declare orschnetter2005-09-26
| | | | | | | | | | | | | | declare and initialise local variables. They also add the necessary magic to prevent compiler warnings about unused variables. If the compiler supports __attribute__((unused)), then use this. Otherwise, use the existing fallback of taking the variable's address. In Fortran, use the variable's kind as fallback. Use these macros in autogenerated code and in "cctk.h". git-svn-id: http://svn.cactuscode.org/flesh/trunk@4146 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for availability of va_copy(3).tradke2005-05-16
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@4052 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Define CCTK_RESTRICT to be the appropriate restrict qualifier forgoodale2004-11-30
| | | | | | | C or C++. git-svn-id: http://svn.cactuscode.org/flesh/trunk@3919 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Rename datatype availability macros from CCTK_HAVE_<datatype> intotradke2004-06-26
| | | | | | | HAVE_CCTK_<datatype> to be consistent with other configure macros. git-svn-id: http://svn.cactuscode.org/flesh/trunk@3794 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Do not define CCTK_L2_CACHE_SIZE and CCTK_L2_CACHELINE_BYTES macros anymore.tradke2004-06-26
| | | | | | | They have been depricated in beta13. git-svn-id: http://svn.cactuscode.org/flesh/trunk@3792 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Introduce CCTK_HAVE_INT* and CCTK_HAVE_REAL* macros.tradke2004-06-20
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@3774 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Test for availability of mkstemp(3).tradke2004-06-20
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@3773 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Fix typo in commentschnetter2004-04-04
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@3640 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Introduce the new Cactus variable type CCTK_INT1.schnetter2003-10-13
| | | | | | | Extend routines to handle the new type. git-svn-id: http://svn.cactuscode.org/flesh/trunk@3431 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Rename CCTK_L2_CACHE_SIZE to CCTK_CACHE_SIZE andallen2003-04-30
| | | | | | | | | | | | CCTK_L2_CACHELINE_BYTES to CCTK_CACHELINE_BYTES to reflect the fact that for now we set these up to be the most appropriate cache size to track (usually either L2 or L3) This is hopefully added such that people don't need to reconfigure right away, but the old macros will be removed in Beta 14. git-svn-id: http://svn.cactuscode.org/flesh/trunk@3204 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Added detection of signal.h.goodale2003-04-05
| | | | | | | Tom git-svn-id: http://svn.cactuscode.org/flesh/trunk@3194 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Some changes prompted by PR/1320:goodale2003-03-13
| | | | | | | | | | | | | | | | | | | | | | | Added #define of SIZEOF_LONG_LONG to cctk_Config.h.in Added macros which detect the presence of bool in C and restrict in C++. Currently these define CCTK_... macros but don't #define bool in C or restrict in C++ as these would be non-standard features which might conflict with user-written macros or code. Moved AC_C_RESTRICT macro to aclocal.m4 and renamed it to CCTK_C_RESTRICT to conform with autoconf naming conventions. Created macro for detecting presence of bool in CXX and changed to use the macro. A little bit of tidying up of cctk_Config.h.in to make the file a bit easier to read. Tom git-svn-id: http://svn.cactuscode.org/flesh/trunk@3173 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Add #defines for the machine Cactus is being built on.allen2002-09-16
| | | | | | | CCTK_BUILD_OS, CCTK_BUILD_CPU, CCTK_BUILD_VENDOR git-svn-id: http://svn.cactuscode.org/flesh/trunk@3003 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Moved the defines for 'const', 'inline', and 'restrict' down into thetradke2002-06-03
| | | | | | | | '#ifdef CCODE' section so that they aren't seen anymore by Fortran code. This should fix Cactus/1079. git-svn-id: http://svn.cactuscode.org/flesh/trunk@2889 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for availability of <sys/ioctl.h>.tradke2002-06-01
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@2883 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for availability of <sys/filio.h> which is needed for socket I/O code.tradke2002-05-31
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@2882 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Support for the C99 restrict keyword. This is dealt with in the samegoodale2002-05-07
| | | | | | | | | | | | | | | | | | | | | | way as the const keyword - i.e. if it exists we do #define restrict restrict and if it doesn't exist we do #define restrict so it is safe to start using the restrict keyword in your C files, they will still compile with compilers which don't support restrict. Note that if you had a local variable called 'restrict' in C you will get an error message, however you would have received one anyway when compiling with a C99 compliant compiler. Tom git-svn-id: http://svn.cactuscode.org/flesh/trunk@2796 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for availability of <dirent.h>.tradke2002-01-07
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@2574 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Removed check for scandir(3) which isn't used anymore in IOUtil.tradke2001-12-21
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@2527 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Get rid of FMODIFIER (DEPRECATED IN BETA 9) and MKDIR/MKDIRFLAGS whichtradke2001-06-12
| | | | | | | aren't used anymore in the code. git-svn-id: http://svn.cactuscode.org/flesh/trunk@2225 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Check for isnan.goodale2001-05-16
| | | | | | | Tom git-svn-id: http://svn.cactuscode.org/flesh/trunk@2189 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Added configure check for finite(3).tradke2001-04-24
| | | | git-svn-id: http://svn.cactuscode.org/flesh/trunk@2135 17b73243-c579-4c4c-a9d2-2d5706c11dac
* Removed the '#undef HAVE_MKDIR' which isn't needed anymore.tradke2001-04-18
| | | | | | | (Just forgot to commit this file when I changed the configure script.) git-svn-id: http://svn.cactuscode.org/flesh/trunk@2125 17b73243-c579-4c4c-a9d2-2d5706c11dac
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