Changes to support long (over 2^32 iterations)
Add script to reduce GProf output to show source code lines.
Merge INT and LOG elements.Add sqrt and classical test on quadrant.
Delete executables.
Modify bench to specify OMP_NUM_THREADS, needed on ARM architecture
Add Pthreads implementation.
Add script for bench on each implementation.
Tiny modifications for input/output
Add MPI simple version
Add OpenMP version.
Add Pi test for Metrology tests.