add MatMultTranspose_Elemental which only works for square matrices for now

Hg-commit: e5076203bfd47d2e2ac3b88dbfefdf0e3db2e92f

implement MatConvert_Elemental_Dense and test in ex170

Hg-commit: a9ece7caca7ce4943614cfaa79a6f27df399bbad

replace A->ops->xxx with MatOps_Values table

Hg-commit: 98afff0b60909c9b6efa1ba9bade523bb46e5a92

MatConvert_Elemental_MPIDense ongoing work

Hg-commit: dc0661e4b74620a3fed7da9a37e1bc7162a7ff00

slight change to MatView_Elemental() and add option to set grid size

Hg-commit: 427c96c2a36dd8e7783ec967ccb1ff510e82f0b6

will add runtime options for elemental interface

Hg-commit: b0fd3ceef3dd56c1a33be2dce7c2d4fe9eadceb3

when viewer format != iascii, convert elemental mat to petsc aij/dense, then call MatView()

Hg-commit: aa329e7d40f621dc892b0d9cfaba5a984a0c96c7

code cleanup. add src/mat/examples/tests/output/ex145.c to nightly tests

Hg-commit: 9d52f9de91e85ecc7bd23fab7df1c409cd2ad312

add info in matview_elemental

Hg-commit: b867143ac4b835893194904705bdef38af77b311

rename ex168 to ex145. MatCholeskyFactor_Elemental only supports SPD matrices now.

Hg-commit: e36314081739ecdd874ad03f71835a6f3d395fdc

add out-of-place cholesky and test in ex168

Hg-commit: f943bde50f7d3f92e0c8b496ce076abc3eead672

prepare for implementing MatCholeskyFactorSymbolic_Elemental and MatCholeskyFactorNumeric_Elemental

Hg-commit: 921332b8a532e94c1fea064daa86e26520249d30

add MatGetInfo_Elemental(). Now KSP can be used with elemental matrix.

Hg-commit: 3d8fec69b7790963ba71e400f6ce9bc7cba40a92

cleanup

Hg-commit: cadcf97c09ecd14aff9fadf162cd8e9b82af704b

add LDL^T factorization in MatCholeskyFactor_Elemental()

Hg-commit: 9f602e6bfd112895d9b90282f4589f74a84131f3

MatView_Elemental() can only show explicit operator when factortype == MAT_FACTOR_NONE

Hg-commit: 5b4b967b29b6756e312690b345f54dcf5da43976

LDLT in Cholesky

Hg-commit: 2ab7277a7cebff34a77c8407961cbf7233c375e0

test in-place cholesky in ex168

Hg-commit: 82b86ad94493c336dd20b3b892bc53c9afa1493d

merge

Hg-commit: 93444ac8728ededcd257e5f48899001333a12d70

add MatView() of ExplicitOperator into MatView_Elemental()

Hg-commit: 51bfeeb58a41eaff8a42cfb5c064715ef134a45a

change function name due to elemental update

Hg-commit: 7b4faf799a7ec4c8c636efe562653e432502af3d

Implemented MatCholeskyFactor()

Hg-commit: a84172f223a25cbe6b7069bd9c72d4b9fa2864d6

Added ksp example for elemental matrices.

Hg-commit: 10df8d8625751278e139477245607736f050407c

Implemented MatSolve_Elemental() and tested in ex168. For now use redistribution before elem::LUSolve() can support vector input.

Hg-commit: f4e42774892b7b483c7455dd3f06632643ea9121

Implemented MatTranspose_Elemental() and MatZeroEntries_Elemental() and tested in ex170.

Hg-commit: 588b4112f661dda033a54970c4934005953c884c