Hello,
I am trying to compute the convex hull of a high dimensional space (46D x 2000 rows).
The qhull app available in cygwin/math is based on relatively old code and runs out
of memory.
I found another version the is supposed to be able to do higher dimensions.
https://bitbucket.org/tomilov/quickhull/src
This version is set up to build with cmake, so I installed cmake in cygwin and
ran it as,
cmake ./src
Note, I had to copy CMakeLists.txt into the src directory to get this to work. If I
don't do that, I get the error,
CMake Error: The source directory
"/cygdrive/g/shared_data/SMD/ATomilov_quickhull/tomilov-quickhull-7faf277d6cc2_cmake/src"
does not appear to contain CMakeLists.txt.
When I have copied the CMakeLists.txt file into ./src, cmake runs but I get the
error,
CMake Error at CMakeLists.txt:11 (message):
only clang supported currently
this comes from the conditional,
if(NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
message(FATAL_ERROR "only clang supported currently")
endif()
in CMakeLists.txt.
I have installed clang from cygwin, but I still get the same error. I added the
following line to CMakeLists.txt,
message(STATUS "${CMAKE_CXX_COMPILER_ID}")
and I get "GNU" as the value for CMAKE_CXX_COMPILER_ID, at least that is the value if
I got the syntax correct for the message statement.
It looks like I need to point CMAKE_CXX_COMPILER_ID to clang, but I am not sure how
to do that. I don't know if the problem is with the CMakeLists.txt file, the way I am
calling cmake, or with my local cygwin configuration.
Suggestions would be appreciated.
LMH
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