topic Hi Chris, in OpenCL* for CPU

Intel SDK unhappy with Intel OpenCL driver?

Chris_S_11 — Fri, 12 Feb 2016 18:57:19 GMT

Hello, I performed these steps:

1. Buy a Dell Precision M4800

2. Install CentOS 7

lspci | grep VGA | grep Intel
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06)

4. Execute these instructions in accordance with the Intel OpenCL Driver and SDK installation guides:

yum install libdrm libpciaccess libpng12 nasm lsb-redhat-core tar
sudo usermod -a -G video cstankevitz
cd ~/Downloads
cp ~/mnt/Dependencies/intel-opencl-1.2-1.0-47971.tar.gz .
tar xvzf intel-opencl-1.2-1.0-47971.tar.gz
cd intel-opencl-1.2-1.0-47971/
sudo rpm -ivh intel-opencl-1.2-1.0-47971.x86_64.rpm
sudo yum install yum-utils rpmdevtools pesign
cd
curl -O http://vault.centos.org/7.1.1503/os/Source/SPackages/kernel-3.10.0-229.el7.src.rpm
sudo yum-builddep kernel-3.10.0-229.el7.src.rpm
rpmdev-setuptree
rpm -ivh kernel-3.10.0-229.el7.src.rpm
cp /opt/intel/opencl/kernel-3.10.0-229.patch ~/rpmbuild/SOURCES/linux-kernel-test.patch
perl -p -i.bak -e 's/^# % (.*?buildid ).*/%\1.intel.sr1/' ~/rpmbuild/SPECS/kernel.spec
rpmbuild -bb --with firmware --without debug --without debuginfo --without perf --without tools ~/rpmbuild/SPECS/kernel.spec
sudo rpm -ivh --oldpackage ~/rpmbuild/RPMS/x86_64/kernel-3.10.0-229.el7.centos.intel.sr1.x86_64.rpm
sudo /sbin/shutdown -r now
sudo rpm -ivh intel-opencl-1.2-devel-1.0-47971.x86_64.rpm
sudo yum install gcc-c++ make mesa-libGL-devel
cd ~/Downloads
cp ~/mnt/Dependencies/intel_sdk_for_opencl_2016_6.0.0.1049_x64.tgz .
tar xvzf intel_sdk_for_opencl_2016_6.0.0.1049_x64.tgz
cd intel_sdk_for_opencl_2016_6.0.0.1049_x64/
sudo ./install_GUI.sh

When the SDK installer runs, it prints this message which is not entirely in english:

 Check for OpenCL driver In work with the SDK, please make sure that the OpenCL™ driver on runtime for Intel® Architecture is installed on the system. For more information, please refer to: https://software.intel.com/en-us/articles/opencl-drivers.

My questions: Is my OpenCL driver installed or not installed? What is the SDK installer trying to communicate to me? What, if anything, did I do wrong? Thank you, Chris

Hi Chris,

Robert_I_Intel — Fri, 12 Feb 2016 19:08:23 GMT

Hi Chris,

I think you can safely proceed with the installation: it is just an FYI - shouldn't prevent you from proceeding. You can check /opt/intel directory to see if your opencl bits are there. Also, you can try building the Linux samples: https://software.intel.com/en-us/intel-opencl-support/code-samples - You will need to modify makefiles a bit though. Run some of the samples to make sure things work.

Quote:Robert Ioffe (Intel)

Chris_S_11 — Fri, 12 Feb 2016 19:28:32 GMT

Robert Ioffe (Intel) wrote:

I think you can safely proceed with the installation: it is just an FYI - shouldn't prevent you from proceeding. You can check /opt/intel directory to see if your opencl bits are there. Also, you can try building the Linux samples: https://software.intel.com/en-us/intel-opencl-support/code-samples - You will need to modify makefiles a bit though. Run some of the samples to make sure things work.

Robert,

Thank you very much for your help. I downloaded the code sample you referred: https://software.intel.com/sites/default/files/managed/bd/3a/intel_ocl_samples_linux.tar.gz, compiled, ran and it worked. I will continue with the SDK install and report if I have trouble.

I had two changes to each Makefile: add "-I/opt/intel/opencl/include/ -L/opt/intel/opencl/" to the compile/link line. Does this mean that the OpenCL driver installation instructions are incorrect or that the Linux OpenCL 1.2 Makefiles are wrong? Or does it mean I messed up somewhere?

Thank you,

Chris

That means we need to update

Robert_I_Intel — Fri, 12 Feb 2016 22:10:20 GMT

That means we need to update the makefiles :)