Dear Rama Divya,
A preprint pdf version of the
Vishwa ICPP paper is available at
http://dos.iitm.ac.in/LabPapers/icppVishwa.pdf
This will give a good idea of the internal details.
The user level details is available in the Vishwa website.
After going through the paper and website, if you have any specific doubts, please get back to me.
Sincerely,
Harisankar H