GPU computing is a widely adopted technology that uses the power of GPUs to accelerate computationally intensive workflows. Since 2010, Parallel Computing Toolbox has provided GPU Computing support for MATLAB.
Application
OpenGL Course – Create 3D and 2D Graphics with C++
Learn how to use OpenGL to create 2D and 3D vector graphics in this course by Victor Gordan
Compiling GAMESS-v2020.2 with Intel MPI
GAMESS Download Site can be found at https://www.msg.chem.iastate.edu/GAMESS/download/dist.source.shtml
Compiling GAMESS
% tar -zxvf gamess-current.tar.gz
% cd gamess
% ./config
You have to answer the following question on
- Machine Type? – I chose “linux64“
- GAMESS directory? -I chose “/usr/local/gamess“
- GAMESS Build Directory – I chose “/usr/local/gamess“
- Version? [00] – I chose default [00]
- Choice of Fortran Compilers – I chose “ifort”
- Version Number of ifort – I chose “18” (You can check by issuing the command ifort -V)
- Standard Math Library – I chose “mkl”
- Path of MKL – I chose “/usr/local/intel/2018u3/compilers_and_libraries_2018.3.222/linux/mkl“
- Type “Proceed” next
- Communication Library – I chose “mpi” (I’m using Infiniband)
- Enter MPI Library – I chose “impi“
- Enter Location of impi – I chose “/usr/local/intel/2018u3/impi/2018.3.222“
- Build experimental support of LibXC – I chose “no“
- Build Beta Version of Active Space CCT3 and CCSD3A – I chose “no“
- Build LIBCCHEM – I chose “no“
- Build GAMESS with OpenMP thread support – I chose “yes”
Once done, you should see
Your configuration for GAMESS compilation is now in
/usr/local/gamess/install.info
Now, please follow the directions in
/usr/local/gamess/machines/readme.unix
Compiling ddi
Edit DDI Node Sizes by editing /usr/local/gamess/ddi/compddi
Look at Line 90 and 91. You may want to edit MAXCPUS and MAXNODES. Once done, you can compile ddi
% ./compddi >& compddi.log &
Compiling GAMESS
The compilation will take a while. So relax…..
% ./compall >& compall.log &
Linking Executable Form of GAMESS with the command
./lked gamess 01 >& lked.log &
Edit the Scratch Directory setting at rungms
% vim rungms
set SCR=/scratch/$USER
Jupyter Notebook Tutorial: Introduction, Setup, and Walkthrough
By Corey Schafer
In this Python Tutorial, we will be learning how to install, setup, and use Jupyter Notebooks. Jupyter Notebooks have become very popular in the last few years, and for good reason. They allow you to create and share documents that contain live code, equations, visualizations and markdown text.
Compiling flac-1.3.3 with GNU 6.5
If you are hoping to compile flac-1.3.3 with libogg-1.3.4, do the following
Step 1: Download latest libogg from Xiph.org

Step 2: Untar and Compile the libogg
% tar -zxvf libogg-1.3.4.tar.gz% cd libogg-1.3.4
% ./configure --prefix=/usr/local/libogg-1.3.4
% make && make install
Step 3: Download flac-1.3.3 from https://github.com/xiph/flac

Step 4: Untar and Compile flac-1.3.3 with libogg-1.3.4
% git clone https://github.com/xiph/flac.git
% cd flac
% ./autogen.sh
% ./configure --prefix=/usr/local/flac-1.3.3 --with-ogg-libraries=/usr/local/libogg-1.3.4/lib --with-ogg-includes=/usr/local/libogg-1.3.4/include/
-=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-
Configuration summary :
FLAC version : ............................ 1.3.3
Host CPU : ................................ x86_64
Host Vendor : ............................. unknown
Host OS : ................................. linux-gnu
Compiler is GCC : ......................... yes
GCC version : ............................. 4.8.5
Compiler is Clang : ....................... no
SSE optimizations : ....................... yes
Asm optimizations : ....................... yes
Ogg/FLAC support : ........................ yes
Stack protector : ........................ yes
Fuzzing support (Clang only) : ............ no
% make && make install
Compiling KALDI with OpenMPI and MKL
KALDI (Kaldi Speech Recognition Toolkit)
Step 1: Git Clone kaldi packages
% git clone https://github.com/kaldi-asr/kaldi.git
Step 2: Check Dependencies.
Do run the following steps in the blog entry Fixing zlib Dependencies Issues for kaldi
Step 3: Load OpenMPI-3.1.4 with GNU-6.5
You may wish to compile OpenMPI with GNU-6.5 according to Compiling OpenMPI-3.1.6 with GCC-6.5
Step 4: Compile kaldi tools
% cd /usr/local/kaldi/tools % make ..... ..... All done OK.
(This make take a long well)
Step 5: Compile src of the main kaldi
% source /usr/local/intel/2018u3/mkl/bin/mklvars.sh intel64 % export CXXFLAGS="-I/usr/local/zlib-1.2.11/include" % ./configure --use-cuda=no % make -j clean depend % make -j 4
Python [Errno 13] Permission denied
Issues
If you are facing issues like this when using python libraries like “queue = multiproccesing.Queue()”, you may face this issue
Error: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/local/intel/2020/intelpython3/lib/python3.7/multiprocessing/context.py", line 102, in Queue return Queue(maxsize, ctx=self.get_context()) File "/usr/local/intel/2020/intelpython3/lib/python3.7/multiprocessing/queues.py", line 42, in __init__ self._rlock = ctx.Lock() File "/usr/local/intel/2020/intelpython3/lib/python3.7/multiprocessing/context.py", line 67, in Lock return Lock(ctx=self.get_context()) File "/usr/local/intel/2020/intelpython3/lib/python3.7/multiprocessing/synchronize.py", line 162, in __init__ SemLock.__init__(self, SEMAPHORE, 1, 1, ctx=ctx) File "/usr/local/intel/2020/intelpython3/lib/python3.7/multiprocessing/synchronize.py", line 59, in __init__ unlink_now) PermissionError: [Errno 13] Permission denied
When executing the code with root privilege, it was working fine, but a normal user doesn’t have permission to access shared memory.
Resolution:
You can counter-check the issue by checking /dev/shm
% ls -ld /dev/shm
Change Permission to 777
% chmod 777 /dev/shm
Turn on the sticky bit
% chmod +t /dev/shm
% ls -ld /dev/shm drwxrwxrwt 4 root root 520 Mar 5 13:32 /dev/shm
Compiling airss-0.9.1 with GNU
Ab initio random structure searching (AIRSS) is a very simple, yet powerful and highly parallel, approach to structure prediction. For more information, Do take a look at https://airss-docs.github.io/
Installation Guide can be found at https://airss-docs.github.io/getting-started/installation/
Installation is quite a breeze. But there are a few additional steps if you have issues.
Step 1: Download airss package
% wget https://www.mtg.msm.cam.ac.uk/files/airss-0.9.1.tgz
Step 2: Load the GNU Compilers (Must be greater than version 5 and above)
Step 3: Compiling the application
% tar -xvf airss-0.9.1.tgz % cd airss-0.9.1 % make
If you have error such as
% wget -c --timeout=1 --tries=2 -nv https://www.mtg.msm.cam.ac.uk/files/symmol.zip Read error (Connection timed out) in headers ..... .....
You may want to download manually and placed the symmol.zip at airss-0.9.1/external/symmol. Run the make again.
% make ; make install ; make neat
% make check ..... ..... -------------------- Tests run in .check: -------------------- Running example 1.1 (Crystals): Al-44343-3411-1 -0.00 7.564 -6.654 8 Al Fm-3m 1 Al-44343-3411-2 -0.00 8.465 0.797 8 Al C2/m 1 Running example 1.2 (Clusters): Al-44735-1896-1 0.00 615.385 -3.410 13 Al Ih 1 Al-44735-1896-2 0.00 615.385 0.362 13 Al C1 1 ..... .....
Fixing zlib Dependencies Issues for kaldi
What is Kaldi?
Kaldi is a toolkit for speech recognition, intended for use by speech recognition researchers and professionals. Find the code repository at http://github.com/kaldi-asr/kaldi.
Downloading Kaldi
% git clone https://github.com/kaldi-asr/kaldi.git
Checking Dependencies
Before you can compile, you may want to check the required dependencies
% cd kaldi/tools
% vim INSTALL
Running the Dependencies Test
% cd kaldi/tools/extras
Load Intel Compilers and MLK
export MKLROOT=/usr/local/intel_2018/mkl/lib
Run the Check_Dependencies Test
% ./check_dependencies.sh ./check_dependencies.sh: zlib is not installed. ./check_dependencies.sh: Some prerequisites are missing; install them using the command: sudo yum install zlib-devel
(This error is strange because becuase zlib and zlib-devel has already been installed)
I used instead a compiled zlib. For more information how to compile zlib, see Compile zlib-1.2.8 with Intel-15.0.6
Next CXXFLAGS on your .bashrc.
CXXFLAGS="-I/usr/local/zlib-1.2.11/include"
Source ~/.bashrc once again.
% source ~/.bashrc
[user1@node1 extras]$ ./check_dependencies.sh ./check_dependencies.sh: all OK.
Compiling Quantum ESPRESSO-6.7.0 with BEEF and Intel MPI 2018 on CentOS 7
Step 1: Download Quantum ESPRESSO 6.5.0 from Quantum ESPRESSO v. 6.7
% tar -zxvf q-e-qe-6.7.0.tar.gz
Step 2: Remember to source the Intel Compilers and indicate MKLROOT in your .bashrc
source /usr/local/intel/2018u3/mkl/bin/mklvars.sh intel64
source /usr/local/intel/2018u3/parallel_studio_xe_2018/bin/psxevars.sh intel64
source /usr/local/intel/2018u3/compilers_and_libraries/linux/bin/compilervars.sh intel64
source /usr/local/intel/2018u3/impi/2018.3.222/bin64/mpivars.sh intel64
Step 3a: Install libbeef
Step 3b: Make a file call setup.sh and copy the contents inside
export F90=mpiifort
export F77=mpiifort
export MPIF90=mpiifort
export CC=mpiicc
export CPP="icc -E"
export CFLAGS=$FCFLAGS
export AR=xiar
#export LDFLAGS="-L/usr/local/intel/2018u3/mkl/lib/intel64"
#export CPPLAGS="-I/usr/local/intel/2018u3/mkl/include/fftw"
export BEEF_LIBS="-L/usr/local/libbeef-0.1.3/lib -lbeef"
export BLAS_LIBS="-lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core"
export LAPACK_LIBS="-lmkl_blacs_intelmpi_lp64"
export SCALAPACK_LIBS="-lmkl_scalapack_lp64 -lmkl_blacs_intelmpi_lp64"
#export FFT_LIBS="-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lmkl_scalapack_lp64"
./configure --enable-parallel --enable-openmp --enable-shared --with-scalapack=intel --prefix=/usr/local/espresso-6.7.0 | tee Configure.out
% ./setup.sh
% make all
% make install
(I prefer make all without the “make all -j 16” so I can see all the errors and trapped seriously)
If successful, you will see in your bin folder
