Perf boost [WIP]#36

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mchandra wants to merge 8 commits intoQuazarTech:masterfrom

mchandra:perf_boost

Commits on Sep 22, 2017

WIP Poisson solver debugging
Shyam Sundar Sankaran
committed

Commits on Sep 26, 2017

1) Added option to get ksp to read command line arguments. Needed to add additional
Mani Chandra
committed

Commits on Sep 27, 2017

* Using SNES to solve Poisson equation
Mani Chandra
committed

Commits on Sep 28, 2017

Got residual assembly for f(x) = x^2 - 2. over [N_q1, N_q2] working with both
Mani Chandra
committed

Commits on Oct 6, 2017

Poisson solver now works with SNES.
Mani Chandra
committed

Commits on Oct 9, 2017

First iteration of 3D poisson solver + 2D charge density. Code in tests/
Mani Chandra
committed
Added perf test for comm to compare old and new ordering
Mani Chandra
committed

Commits on Oct 10, 2017

Isolated rate limiting step in comm_new()
Mani Chandra
committed