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Alchemist is a framework for easily and efficiently calling MPI-based codes from Apache Spark.

Platonic Alchemist Architecture

Supporting libraries that Alchemist uses:

  • Elemental -- used for distributing the matrices b/w Alchemist processes, distributed linear algebra
  • Eigen3 -- used for local matrix manipulations (more convenient interface than Elemental)
  • Arpack-ng -- for the computation of truncated SVDs
  • Arpackpp -- very convenient C++ interface to Arpack-ng

The remainder of this file gives instructions for installing and running Alchemist locally on a Powerbook. See also instructions for installing and running Alchemist on Cori, a NERSC supercomputer.

To run Alchemist in a fresh terminal:

cd $HOME/Documents/alchemist # or wherever you installed it
export ALPREFIX=$HOME/Documents/alchemist/bins # or whatever you used during install
export PATH=$PATH:$HOME/local/spark-2.1.1/bin # or wherever spark-bin is located
export TMPDIR=/tmp # avoid a Mac specific issue with tmpdir length
make # will both build and run the test suite

Installation instructions (for running locally on MacOS 10.12) (NEED TO BE UPDATED: adapt the setup/cori-bootstrap.sh script)

Install some prereqs

Assuming that the XCode command line tools, Homebrew, and Spark have been installed:

brew install gcc
brew install make --with-default-names
brew install cmake
brew install boost-mpi
brew install sbt

Clone the Alchemist repo and set the ALPREFIX environment variable where supporting libraries will be installed

cd Documents # (if you want to install alchemist in $HOME/Documents/alchemist)
git clone https://github.com/alexgittens/alchemist.git
cd alchemist 
export ALPREFIX=$HOME/Documents/alchemist/bins

Install Elemental into ALPREFIX

git clone https://github.com/elemental/Elemental.git
cd Elemental
git checkout 0.87
mkdir build
cd build
CC=gcc-7 CXX=g++-7 FC=gfortran-7 cmake -DCMAKE_BUILD_TYPE=Release -DEL_IGNORE_OSX_GCC_ALIGNMENT_PROBLEM=ON -DCMAKE_INSTALL_PREFIX=$ALPREFIX ..
nice make -j8
make install
cd ../..
rm -rf Elemental

Install Eigen3 into ALPREFIX

curl -L -O http://bitbucket.org/eigen/eigen/get/3.3.4.zip
unzip 3.3.4.zip
rm 3.3.4.zip
cd eigen-eigen-5a0156e40feb # or whatever the tag is
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$ALPREFIX ..
make install
cd ../..
rm -rf eigen-eigen-5a0156e40feb

Install SPDLog into ALPREFIX

git clone https://github.com/gabime/spdlog.git
cd spdlog
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$ALPREFIX ..
make install
cd ../..
rm -rf spdlog

Install Arpack-ng into ALPREFIX

git clone https://github.com/opencollab/arpack-ng.git
cd arpack-ng
mkdir build
cd build
CC=gcc-7 FC=gfortran-7 cmake -DMPI=ON -DBUILD_SHARED_LIBS=ON -DCMAKE_INSTALL_PREFIX=$ALPREFIX ..
nice make -j8
make install
cd ../..
rm -rf arpack-ng

Install Arpackpp into ALPREFIX

git clone https://github.com/m-reuter/arpackpp.git
cd arpackpp
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$ALPREFIX ..
make install
cd ../..
rm -rf arpackpp

To test

Needs to be made less manual and more in line with standard practices, e.g., see the spark-perf project