This is a command line version of the SSGet tool for working with matrices from the Suite Sparse collection (sparse.tamu.edu).
Standard UNIX tools:
- bash
- curl
- tar (only for
-eoption with-t MMor-t RB) - make (only for installation)
git clone https://github.com/ginkgo-project/ssget.git
cd ssget
sudo make installOr a one-liner that doesn't create a local copy of the repository:
sudo curl -Lo /usr/local/bin/ssget https://raw.githubusercontent.com/ginkgo-project/ssget/master/ssgetRun ssget -h to get a list of available options:
Usage: ssget [options]
Available options:
-c clean files extracted from archive
-d (re)download matrix info file
-e download matrix and extract archive
-f download matrix and get path to archive
-h show this help
-i ID matrix id
-j print information about the matrix in JSON format
-n get number of matrices in collection
-p PROPERTY print information about the matrix, PROPERTY is the propery to
print, one of group, name, rows, cols, nonzeros, real, binary,
2d3d, posdef, psym, nsym, kind
-r remove archive
-t TYPE matrix type, TYPE is one of: MM (matrix market, '.mtx'), RB
(Rutherford Boeing, '.rb'), mat (MATLAB, '.mat')
-v get database version
-s search database with conditions. It uses @PROPERTY as the
placeholder
Calling ssget without arguments is equivalent to: ssget -i 0 -t MM -v
Return properties of all matrices as a JSON array:
NUM_PROBLEMS=$(ssget -n)
echo "["
for (( i=1; i <= ${NUM_PROBLEMS}; ++i )); do
ssget -i $i -j
echo ","
done
echo "]"Download matrix arhives for the entire collection, and print the size:
NUM_PROBLEMS=$(ssget -n)
TOTAL_SIZE=0
for (( i=1; i <= ${NUM_PROBLEMS}; ++i )); do
# ssget -i $i -j
ARCHIVE=$(ssget -i $i -f)
SIZE=($(du -k ${ARCHIVE}))
echo "${ARCHIVE}: ${SIZE}KB"
TOTAL_SIZE=$((${TOTAL_SIZE} + ${SIZE}))
done
echo "Total: ${TOTAL_SIZE}KB"NOTE: This will transfer and store a huge amount of data!
Extract (and download if needed) the matrix with ID=10, pass its location to
the program foo and delete the extracted files (but keep the archive)
afterwards:
foo $(ssget -ei10)
ssget -ci10Delete the archive for matrix with ID=10
ssget -ri10Search the database with 400 <= #rows <= 450 and
numerical symmertry >= 0.99
./ssget -s '[ @rows -ge 400 ] && [ @rows -le 450 ] && [ $(awk "BEGIN{print(@nsym <= 0.99)}") -eq 1 ]'BSD 3-clause
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