Fixing IO on CI Farm

build.sh

@@ -63,7 +63,7 @@ then
 else
  sh ./configure CXX=mpic++ --with-hdf5=$HOME/openfpm_dependencies/openfpm_io/$branch/HDF5 --with-boost=$HOME/openfpm_dependencies/openfpm_io/$branch/BOOST --with-pdata=../openfpm_pdata/src
 fi
-make VERBOSE=1 -j 4
+make VERBOSE=1 -j 1 
 
 if [ $? -ne 0 ]; then
    curl -X POST --data "payload={\"icon_emoji\": \":jenkins:\", \"username\": \"jenkins\"  , \"attachments\":[{ \"title\":\"Error:\", \"color\": \"#FF0000\", \"text\":\"$2 failed to compile the openfpm_io test \" }] }" https://hooks.slack.com/services/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