for dataset in $(echo "1000.txt" "10000.txt" "1000000.txt" "1000000.txt"); do
    for processors in $(echo 1 2 4 8 16 | tr ' ' '\n'); do
        # file="dataset/both_$dataset"
        file="/export/scratch/CSCI5451_F23/assignment-3/dataset/$dataset"
        echo $processors $file;
        mpirun -n $processors ./lpa $file >> out.txt
    done
done