scr2veloc

Library to translate SCR calls to VELOC calls. This installs the scr.h header and libscr files.

Build scr2veloc library

Requires path to veloc install.

#!/bin/bash

# variables to set if need to build with different compiler
export CC=icc
export CXX=icpc
export F77=ifort
export F90=ifort

VELOC_PATH=../veloc.git/install

cmake -DCMAKE_INSTALL_PREFIX=`pwd`/install -DCMAKE_BUILD_TYPE=Debug -DWITH_VELOC_PREFIX=$VELOC_PATH -DWITH_KVTREE_PREFIX=$VELOC_PATH

make VERBOSE=1

make install

Build SCR example programs linked to scr2veloc

Copy the examples from the install location:

#!/bin/bash
cp -pr <scr2veloc>/install/share/scr/examples .
cd examples
make

Run SCR examples

Create a veloc config file, e.g.,:

>>: cat veloc.config
scratch = /tmp/scratch
persistent = /tmp/persistent
max_versions = 1
mode = sync
axl_type = AXL_XFER_SYNC

To run, set SCR2VELOC_CONFIG to point to the veloc config file, and set SCR2VELOC_NAMES to point to where the kvtree file should be written/read that records the mapping of SCR output name to VELOC checkpoint id:

#!/bin/bash
export SCR2VELOC_CONFIG="veloc.config"
export SCR2VELOC_NAMES="scrnames.kvtree"
srun -n2 -N1 ./test_api

Release

Copyright (c) 2018, UChicago Argonne LLC, operator of Argonne National Laboratory
Copyright (c) 2018, Lawrence Livermore National Security, LLC. Produced at the Lawrence Livermore National Laboratory.

For release details and restrictions, please read the LICENSE and NOTICE files.

LLNL-CODE-751725 OCEC-18-060