1 Apr
2019
1 Apr
'19
11:21 p.m.
Hi,
I am a new user trying to install PyOpenCL with the latest version of Anaconda (for python
3.7) to a standalone HPC. After installing Anaconda to my work directory, installing the
correct PyOpenCL package for python 3.7, symbolically linking the nvidia.icd from
/etc/OpenCL/vendors/nvidia.icd to
/p/work1/myUsername/myAnaconda3/etc/OpenCL/vendors/nvidia.icd as the documentation states,
launching an interactive GPU node, launching python, and running “import pyopencl”, I get
the following error: “ImportError: /lib64/libOpenCL.so.1: version ‘OPENCL_2.1’ not found
(required by /p/work1/
myUsername/myAnaconda3/lib/python3.7/pyopencl/_cl.cpython-37m-x86_64-linux-gnu.so”. The
file /etc/OpenCL/vendors/nvidia.icd contains the text “libnvidia-opencl.so.1”.
I originally submitted a ticket to the HPC admins asking them to update OpenCL to version
2.1 due to this error I was getting, but later learned that the GPU’s on this HPC only
support up to OpenCL 1.2. After looking over some posts here, I’m tempted to think that
there may be an issue with the OpenCL header files specifying that the OpenCL version is
2.1 even though the nvidia drivers only support OpenCL 1.2. Does this sound like a good
path for me to pursue with the admins or do you have any other suggestions for this error?
Thanks!
Chris
2 Apr
2 Apr
12:18 a.m.
Chris,
"DITTER, CHRISTOPHER J 1st Lt USAF HAF NASIC/ACNW"
<christopher.ditter.1(a)us.af.mil> writes:
I am a new user trying to install PyOpenCL with the
latest version of
Anaconda (for python 3.7) to a standalone HPC. After installing
Anaconda to my work directory, installing the correct PyOpenCL package
for python 3.7, symbolically linking the nvidia.icd from
/etc/OpenCL/vendors/nvidia.icd to
/p/work1/myUsername/myAnaconda3/etc/OpenCL/vendors/nvidia.icd as the
documentation states, launching an interactive GPU node, launching
python, and running “import pyopencl”, I get the following error:
“ImportError: /lib64/libOpenCL.so.1: version ‘OPENCL_2.1’ not found
(required by /p/work1/
myUsername/myAnaconda3/lib/python3.7/pyopencl/_cl.cpython-37m-x86_64-linux-gnu.so”. The
file /etc/OpenCL/vendors/nvidia.icd contains the text
“libnvidia-opencl.so.1”.
I originally submitted a ticket to the HPC admins asking them to
update OpenCL to version 2.1 due to this error I was getting, but
later learned that the GPU’s on this HPC only support up to OpenCL
1.2. After looking over some posts here, I’m tempted to think that
there may be an issue with the OpenCL header files specifying that the
OpenCL version is 2.1 even though the nvidia drivers only support
OpenCL 1.2. Does this sound like a good path for me to pursue with the
admins or do you have any other suggestions for this error? Thanks!
Your initial hunch was correct. Nonetheless, if you must build PyOpenCL
from source, you should be able to use
./configure.py --cl-pretend-version=1.2
to force the version of the header that PyOpenCL uses.
Alternatively, since (it seems) you are already using Anaconda, you
might as well install our binary packages in conda-forge, see here:
https://documen.tician.de/pyopencl/misc.html#installation
(if that's an option)
HTH,
Andreas
2:39 p.m.
New subject: [Non-DoD Source] Re: PyOpenCL Installation
Andreas,
Thank you very much for your quick reply! I will try building it from source with that
flag and see if I have success with this method. One clarification I should have made:
when I was receiving the error I outlined below, it was from installing PyOpenCL using
"conda install pyopencl-2018.2.5-py37h8619c78_0.tar.bz2" as opposed to building
it from source. Is there a way I can add a similar flag while doing "conda
install" or do you think building it from source with that added flag is my best
option?
Chris
-----Original Message-----
From: Andreas Kloeckner <lists(a)informa.tiker.net>
Sent: Monday, April 1, 2019 8:18 PM
To: DITTER, CHRISTOPHER J 1st Lt USAF HAF NASIC/ACNW
<christopher.ditter.1(a)us.af.mil>il>; pyopencl(a)tiker.net
Subject: [Non-DoD Source] Re: [PyOpenCL] PyOpenCL Installation
Chris,
"DITTER, CHRISTOPHER J 1st Lt USAF HAF NASIC/ACNW"
<christopher.ditter.1(a)us.af.mil> writes:
I am a new user trying to install PyOpenCL with the
latest version of
Anaconda (for python 3.7) to a standalone HPC. After installing
Anaconda to my work directory, installing the correct PyOpenCL package
for python 3.7, symbolically linking the nvidia.icd from
/etc/OpenCL/vendors/nvidia.icd to
/p/work1/myUsername/myAnaconda3/etc/OpenCL/vendors/nvidia.icd as the
documentation states, launching an interactive GPU node, launching
python, and running “import pyopencl”, I get the following error:
“ImportError: /lib64/libOpenCL.so.1: version ‘OPENCL_2.1’ not found
(required by /p/work1/
myUsername/myAnaconda3/lib/python3.7/pyopencl/_cl.cpython-37m-x86_64-l
inux-gnu.so”. The file /etc/OpenCL/vendors/nvidia.icd contains the
text “libnvidia-opencl.so.1”.
I originally submitted a ticket to the HPC admins asking them to
update OpenCL to version 2.1 due to this error I was getting, but
later learned that the GPU’s on this HPC only support up to OpenCL
1.2. After looking over some posts here, I’m tempted to think that
there may be an issue with the OpenCL header files specifying that the
OpenCL version is 2.1 even though the nvidia drivers only support
OpenCL 1.2. Does this sound like a good path for me to pursue with the
admins or do you have any other suggestions for this error? Thanks!
Your initial hunch was correct. Nonetheless, if you must build PyOpenCL from source, you
should be able to use
./configure.py --cl-pretend-version=1.2
to force the version of the header that PyOpenCL uses.
Alternatively, since (it seems) you are already using Anaconda, you might as well install
our binary packages in conda-forge, see here:
https://documen.tician.de/pyopencl/misc.html#installation
(if that's an option)
HTH,
Andreas
705
days inactive
706
days old
2 comments
2 participants
participants (2)
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Andreas Kloeckner -
DITTER, CHRISTOPHER J 1st Lt USAF HAF NASIC/ACNW