Links for slepc
http://www.grycap.upv.es/slepc/download/distrib/slepc-3.3-p4.tar.gz#md5=d034e8b894bda374ec330a750428ac3f#egg=slepc-3.3.4
http://www.grycap.upv.es/slepc/download/distrib/slepc-3.4.4.tar.gz#md5=329179c5139027c7b293dd5ab0bc112c#egg=slepc-3.4.4
http://www.grycap.upv.es/slepc/download/distrib/slepc-3.5.1.tar.gz#md5=5106f42051eaed215afa82064612df5b#egg=slepc-3.5.1
http://www.grycap.upv.es/slepc/download/distrib/slepc-3.5.3.tar.gz#md5=417a691e5a756ba2a6dde7f156ff57a5#egg=slepc-3.5.3
https://bitbucket.org/slepc/slepc/get/294220c.tar.gz#md5=3dd186c9de693a92b978fd691051636a#egg=slepc-3.5