Comments (8)
h-g-s
commented on May 30, 2024
Hello,
Python-MIP now uses the development version of cbc (cbc trunk) built
with some customized options. I'll would love to see it running in the
Rabsberry pi (planning to buy one in the future). I'll provide the
instructions for you to build it. If you provide me the resulting binary
I can include in the Python-MIP package.
First, download the development version of cbc:
svn checkout https://projects.coin-or.org/svn/Cbc/trunk cbctrunk
cd cbctrunk
cd ThirdParty/Lapack/
./get.Lapack
cd ../Blas/
./get.Blas
cd ../../
cp ~/dev/mip/scripts/buildCBCLinux.sh ./
(it will probably be better to modify the make -j 2 line of this script
to make -j 1 since the raspberry doesn't have too much memory and
building with link time optimization flto uses a lot of memory)
bash buildCBCLinux.sh
(you'll need gcc and gfortran)
Cheers,
Haroldo
On 13/10/2019 03:49, kokil01 wrote:
Hi
I am trying to use the MIP package on raspian buster but it fails with
the error
|Osi_getNumCols = cbclib.Osi_getNumCols NameError: name 'cbclib' is
not defined |
Which is expected since only linux, windows and mac osx binaries are
included by default.
However cbc is available in the debian repositories and can be
installed using
|sudo apt-get install coinor-cbc |
which will place cbc binary in path linking to following so's
|/usr/lib/arm-linux-gnueabihf/libarmmem-${PLATFORM}.so =>
/usr/lib/arm-linux-gnueabihf/libarmmem-v7l.so (0x76fa9000)
libCbcSolver.so.3 => /usr/lib/arm-linux-gnueabihf/libCbcSolver.so.3
(0x76ecc000) libCbc.so.3 => /usr/lib/arm-linux-gnueabihf/libCbc.so.3
(0x76dd4000) libpthread.so.0 =>
/lib/arm-linux-gnueabihf/libpthread.so.0 (0x76daa000) librt.so.1 =>
/lib/arm-linux-gnueabihf/librt.so.1 (0x76d93000) libCgl.so.1 =>
/usr/lib/arm-linux-gnueabihf/libCgl.so.1 (0x76c9a000) libOsiClp.so.1
=> /usr/lib/arm-linux-gnueabihf/libOsiClp.so.1 (0x76c4c000)
libClpSolver.so.1 => /usr/lib/arm-linux-gnueabihf/libClpSolver.so.1
(0x76bec000) libClp.so.1 => /usr/lib/arm-linux-gnueabihf/libClp.so.1
(0x76a7a000) libOsi.so.1 => /usr/lib/arm-linux-gnueabihf/libOsi.so.1
(0x76a24000) libCoinUtils.so.3 =>
/usr/lib/arm-linux-gnueabihf/libCoinUtils.so.3 (0x7690c000)
libbz2.so.1.0 => /lib/arm-linux-gnueabihf/libbz2.so.1.0 (0x768ec000)
libz.so.1 => /lib/arm-linux-gnueabihf/libz.so.1 (0x768c1000)
liblapack.so.3 => /usr/lib/arm-linux-gnueabihf/liblapack.so.3
(0x76376000) libblas.so.3 => /usr/lib/arm-linux-gnueabihf/libblas.so.3
(0x76310000) libstdc++.so.6 =>
/usr/lib/arm-linux-gnueabihf/libstdc++.so.6 (0x761c9000) libm.so.6 =>
/lib/arm-linux-gnueabihf/libm.so.6 (0x76147000) libgcc_s.so.1 =>
/lib/arm-linux-gnueabihf/libgcc_s.so.1 (0x7611a000) libc.so.6 =>
/lib/arm-linux-gnueabihf/libc.so.6 (0x75fcc000)
/lib/ld-linux-armhf.so.3 (0x76fbe000) libgfortran.so.5 =>
/usr/lib/arm-linux-gnueabihf/libgfortran.so.5 (0x75ef3000) |
Is it possible to use these to get MIP working on buster?
Thanks!
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--
=============================================================
Haroldo Gambini Santos
Computing Department
Universidade Federal de Ouro Preto - UFOP
email: [email protected]
home/research page: www.decom.ufop.br/haroldo
It has long been an axiom of mine that the little things are infinitely
the most important.
-- Sir Arthur Conan Doyle, "A Case of Identity"
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kokil01
commented on May 30, 2024
Thanks for providing the instructions.
I tried them and it failed because it could not link to libquadmath. Looks like its not supported on arm platforms yet - https://packages.debian.org/buster/libquadmath0
I modified the buildCBCLinux.sh locally by passing --disable-libquadmath option to the configure script. Lets see if it works.
Update: Unfortunately it didn't work.
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kokil01
commented on May 30, 2024
Hi
Spend sometime looking into this. I had to make 2 changes and I was able to compile. Since libquadmath is not available on Pi I had to remove it from linking. Here is the final bash script
if [ ! -d "Cbc" ];
then
echo "call this script in the CBC source directory"
exit
fi
if [ ! -f "configure" ];
then
echo "call this script in the CBC source directory"
exit
fi
export CFLAGS="-Ofast -fPIC -flto -DNDEBUG -fprefetch-loop-arrays -I/opt/gcc/include/"
export FFLAGS="-Ofast -fPIC -flto -DNDEBUG -I/opt/gcc/include/"
export CXXFLAGS="-Ofast -fPIC -flto -DNDEBUG -I/opt/gcc/include/"
export LDFLAGS="-Ofast -fPIC -L/opt/gcc/lib -flto -static-libgcc -static-libstdc++ -static-libgfortran"
./configure --enable-cbc-parallel --enable-static --disable-shared --disable-libquadmath
make clean
make -j 1
g++ -shared -Ofast -fPIC -o cbc-c-linux-x86-64.so \
-I~/prog/include/ -I./CoinUtils/src/ -I./Osi/src/ -I./Clp/src/ -I./Clp/src/ \
-I./Cgl/src/ -I./Cbc/src/ -I./Osi/src/Osi/ -I./Clp/src/OsiClp/ -DCBC_THREAD \
./Cbc/src/Cbc_C_Interface.cpp -L/opt/gcc/lib64/ -L./Cbc/src/.libs/ -L./Cgl/src/.libs/ \
-L./Cgl/src/.libs/ -L./Osi/src/Osi/.libs/ -L./Clp/src/OsiClp/.libs/ -L./Clp/src/.libs/ \
-L./CoinUtils/src/.libs/ -L./Cgl/src/.libs/ -L./Clp/src/OsiClp/.libs/ -L./Clp/src/.libs/ \
-L./ThirdParty/Lapack/.libs/ -L./ThirdParty/Blas/.libs/ \
-lCbcSolver -lCbc -lpthread -lrt -lCgl -lOsiClp -lClpSolver -lClp -lOsi -lCoinUtils \
-lcoinlapack -lcoinblas -lgfortran -lm -static-libgcc -static-libstdc++ -static-libgfortran
I have attached the produced binary file.
But I think it still does not work. Because when I do a = ffi.dlopen("/tmp/cbc-c-linux-x86-64.so") with the generated file it produces the following error -
OSError: cannot load library '/tmp/cbc-c-linux-x86-64.so': /tmp/cbc-c-linux-x86-64.so: undefined symbol: BZ2_bzWriteClose. Additionally, ctypes.util.find_library() did not manage to locate a library called '/tmp/cbc-c-linux-x86-64.so'
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kokil01
commented on May 30, 2024
Looking for all undefined symbols looks like there are a lot of them
nm /tmp/cbc-c-linux-x86-64.so | grep 'U '
yields
U BZ2_bzRead
U BZ2_bzReadClose
U BZ2_bzReadOpen
U BZ2_bzWrite
U BZ2_bzWriteClose
U BZ2_bzWriteOpen
U _gfortran_stop_string@@GFORTRAN_8
U _gfortran_string_len_trim@@GFORTRAN_8
U _gfortran_st_write_done@@GFORTRAN_8
U _gfortran_st_write@@GFORTRAN_8
U _gfortran_transfer_character_write@@GFORTRAN_8
U _gfortran_transfer_integer_write@@GFORTRAN_8
U gzclose
U gzopen
U gzread
U gzwrite
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kokil01
commented on May 30, 2024
It worked!!! Just needed to add bz2 as a library
g++ -shared -Ofast -fPIC -o cbc-c-linux-x86-64.so \
-I~/prog/include/ -I./CoinUtils/src/ -I./Osi/src/ -I./Clp/src/ -I./Clp/src/ \
-I./Cgl/src/ -I./Cbc/src/ -I./Osi/src/Osi/ -I./Clp/src/OsiClp/ -DCBC_THREAD \
./Cbc/src/Cbc_C_Interface.cpp -L/opt/gcc/lib64/ -L./Cbc/src/.libs/ -L./Cgl/src/.libs/ \
-L./Cgl/src/.libs/ -L./Osi/src/Osi/.libs/ -L./Clp/src/OsiClp/.libs/ -L./Clp/src/.libs/ \
-L./CoinUtils/src/.libs/ -L./Cgl/src/.libs/ -L./Clp/src/OsiClp/.libs/ -L./Clp/src/.libs/ \
-L./ThirdParty/Lapack/.libs/ -L./ThirdParty/Blas/.libs/ \
-lCbcSolver -lCbc -lpthread -lrt -lCgl -lOsiClp -lClpSolver -lClp -lOsi -lCoinUtils -lbz2 \
-lcoinlapack -lcoinblas -lgfortran -lm -static-libgcc -static-libstdc++ -static-libgfortran
Here is the .so file which loads in python.
cbc-c-linux-x86-64.so.zip
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h-g-s
commented on May 30, 2024
Great ! Now the cbc binary should be renamed to reflect the achitecture of
the build. Could you enter an lscpu command and check which
architecture is reported ? Yours is a raspberry 3 or 4 ?
After, tests in cbc.py should include this new architecture, the current
code is:
(cbc.py line 23)
os_is_64_bit = maxsize > 2**32
INF = float('inf')
cut_idx = 0
# for variables and rows
MAX_NAME_SIZE = 512
DEF_PUMPP = 30
try:
pathmip = dirname(mip.__file__)
pathlib = os.path.join(pathmip, 'libraries')
libfile = ''
if 'linux' in platform.lower():
if os_is_64_bit:
libfile = os.path.join(pathlib, 'cbc-c-linux-x86-64.so')
elif platform.lower().startswith('win'):
if os_is_64_bit:
libfile = os.path.join(pathlib, 'cbc-c-windows-x86-64.dll')
else:
libfile = os.path.join(pathlib, 'cbc-c-windows-x86-32.dll')
elif platform.lower().startswith('darwin') or
platform.lower().startswith('macos'):
if os_is_64_bit:
libfile = os.path.join(pathlib, 'cbc-c-darwin-x86-64.dylib')
…--
=============================================================
Haroldo Gambini Santos
Computing Department
Universidade Federal de Ouro Preto - UFOP
email: [email protected]
[email protected]
home/research page: www.decom.ufop.br/haroldo
It has long been an axiom of mine that the little things are infinitely
the most important.
-- Sir Arthur Conan Doyle, "A Case of Identity"
On Sat, 2 Nov 2019, kokil01 wrote:
It worked!!! Just needed to add bz2 as a library
g++ -shared -Ofast -fPIC -o cbc-c-linux-x86-64.so \
-I~/prog/include/ -I./CoinUtils/src/ -I./Osi/src/ -I./Clp/sr
c/ -I./Clp/src/ \
-I./Cgl/src/ -I./Cbc/src/ -I./Osi/src/Osi/ -I./Clp/src/OsiCl
p/ -DCBC_THREAD \
./Cbc/src/Cbc_C_Interface.cpp -L/opt/gcc/lib64/ -L./Cbc/src/
.libs/ -L./Cgl/src/.libs/ \
-L./Cgl/src/.libs/ -L./Osi/src/Osi/.libs/ -L./Clp/src/OsiClp
/.libs/ -L./Clp/src/.libs/ \
-L./CoinUtils/src/.libs/ -L./Cgl/src/.libs/ -L./Clp/src/OsiC
lp/.libs/ -L./Clp/src/.libs/ \
-L./ThirdParty/Lapack/.libs/ -L./ThirdParty/Blas/.libs/ \
-lCbcSolver -lCbc -lpthread -lrt -lCgl -lOsiClp -lClpSolver
-lClp -lOsi -lCoinUtils -lbz2 \
-lcoinlapack -lcoinblas -lgfortran -lm -static-libgcc -stat
ic-libstdc++ -static-libgfortran
Here is the .so file which loads in python.
cbc-c-linux-x86-64.so.zip
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h-g-s
commented on May 30, 2024
just added this to the TODO list of the project, I'll remove as an issue for now
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corneel27
commented on May 30, 2024
I was installing mip on a raspberry pi, but it is still not working "out of the box"
I have build the binary by myself from https://github.com/coin-or /
Cbc
And with a softlink to the builded binary the mip library works fine.
But I want to use it in Appdaemon of Home Assistant and that docker image doesn't allow me to install binaries.
Is it possible to get this to work with an arm-binary?
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