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Mesh generator
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Stefan Brüns 85e8c09ff6 Fix GetTimeCounter for Aarch64 variants 
Neither GCC nor Clang define an __arm64__ preprocessor macro, but use
__aarch64__ (MSVC uses _MARM_64). Add a "64" suffix to the define, i.e.
NETGEN_ARCH_ARM64 to make it more obvious in only refers to aarch64, and
to be in line with NETGEN_ARCH_AMD64.

Replace the (Clang specific) __builtin_readcyclecounter with inline
asm:
- The function return cycles (i.e. varies with CPU frequency), not time
- It may return 0, depending on the PMU settings
- It may cause an illegal instruction, in case it is not trapped by the
  kernel, e.g. on FreeBSD.

Reading the generic timer/counter CNTVCT_EL0 instead of PMCCNTR_EL0 avoids
these pitfalls. The inline asm works on GCC and Clang, instead of
Clang only for the builtin.
2021-03-03 17:30:33 +01:00
cmake mem tracing compile time option, simplify by MemoryTracer as member 2020-11-21 15:49:07 +01:00
doc Typos 2018-01-14 12:18:54 -05:00
external_dependencies update pybind11 to 2.6.0rc3 2020-10-17 17:58:38 +02:00
libsrc Fix GetTimeCounter for Aarch64 variants 2021-03-03 17:30:33 +01:00
ng Clean up multiple definitions of DLL_HEADER 2021-02-18 14:53:38 +01:00
nglib Clean up multiple definitions of DLL_HEADER 2021-02-18 14:53:38 +01:00
py_tutorials csg2d - fix tutorial 2020-09-15 15:48:49 +02:00
python add ellipse as csg2d solid object 2020-11-11 16:40:06 +00:00
rules fix triangle generation rule (thx to TDM) 2017-11-07 11:36:54 +01:00
tests Merge branch 'fix_swapimprove' into 'master' 2021-03-02 11:08:13 +00:00
tutorials add elliptic cone example 2018-02-26 15:12:18 +01:00
windows fix license name in resource file 2020-11-24 12:11:43 +01:00
.gitlab-ci.yml install pytest-check 2021-01-15 14:32:56 +01:00
.gitmodules Use own fork of pybind11 to apply patches 2018-09-06 13:10:22 +02:00
AUTHORS undo lib dependencies 2012-06-11 20:19:06 +00:00
ChangeLog autotools 2009-01-12 23:40:13 +00:00
CLA.pdf add contributors license agreement and contributing guidelines 2020-12-04 14:36:35 +01:00
CMakeLists.txt No write check on install dir with USE_SUPERBUILD=OFF 2021-03-02 09:29:09 +01:00
CONTRIBUTING.md change script -> failing example 2020-12-04 14:41:56 +01:00
depcomp autotools 2009-01-12 23:40:13 +00:00
INSTALL autotools 2009-01-12 23:40:13 +00:00
LICENSE mesh rendering fixes 2009-01-24 23:28:47 +00:00
mkinstalldirs autotools 2009-01-12 23:40:13 +00:00
netgen.icns icon 2015-12-21 20:22:17 +01:00
NEWS autotools 2009-01-12 23:40:13 +00:00
README.md Add new file 2016-07-11 10:31:48 +02:00
TODO autotools 2009-01-12 23:40:13 +00:00

README.md

Netgen mesh generator

NETGEN is an automatic 3d tetrahedral mesh generator. It accepts input from constructive solid geometry (CSG) or boundary representation (BRep) from STL file format. The connection to a geometry kernel allows the handling of IGES and STEP files. NETGEN contains modules for mesh optimization and hierarchical mesh refinement. Netgen 6.x supports scripting via a Python interface. Netgen is open source based on the LGPL license. It is available for Unix/Linux, Windows, and OSX.