#!/bin/sh

#
# Exercises code in mincore.c mm/
#
. ./hw_vars

#check for max shared memory allowed on system
MAX_SHARE_SEGMENT=$(cat /proc/sys/kernel/shmmax)

#segment size being requested
SHM_SIZE=$((mem / nr_task))
#echo "shared segment size being requested $SHM_SIZE"

#echo "Max shared segment allocatable is set to $MAX_SHARE_SEGMENT"

#check to see if the request can be satisfied else exit with error
if [ $MAX_SHARE_SEGMENT -lt $SHM_SIZE ]
then
        echo "Cannot allocate more shared memory segment than $MAX_SHARE_SEGMENT"
        echo "exiting now..."
        exit 1 #exit on failure
fi

for i in `seq nr_task`
do
	create_sparse_file $SPARSE_FILE-$i $SHM_SIZE
	$USEMEM -t $nr_task -f $SPARSE_FILE -N --prealloc --readonly --random $SHM_SIZE &
done
wait

rm $SPARSE_FILE-*