rm unused variable

Hg-commit: c01bc31fcadc7ed2d6f97a4fef72a69ed83c8bf5

rm the implementation of using two dense rows in MatMatMultNumeric_SeqAIJ_SeqAIJ()

Hg-commit: 4a285d5e16264c1cb09cff67cff059c1231c3979

minor optimization of PtAPNumeric_SeqAIJ_SeqAIJ()

Hg-commit: 5c94f749a12bb1f65890c7fb3f44dcd661035320

windows fixes

Hg-commit: 0ed7d20124fa8b04e020953f368d6db470437eaf

add ONE dense axpy to MatPtAPNumeric_MPIAIJ_MPIAIJ()

Hg-commit: 63cbfa225d41d17308605aa45e6dcfb219539422

bugfix of seq/matmatmult.c

Hg-commit: 9e3c6342fb9255b16f6abd53d1f54d0b3ae7b6bf

bugfix for MatPtAPNumeric_SeqAIJ_SeqAIJ()

Hg-commit: a0a30e5b7040ccbec912e4a4b8917dcb6f5931fc

replace container Mat_PtAP with a special struct inside Mat_SeqAIJ;
use three subroutines for different implementations of MatPtAPNumeric_SeqAIJ_SeqAIJ()
for trade of between speed and memory

Hg-com

replace container Mat_PtAP with a special struct inside Mat_SeqAIJ;
use three subroutines for different implementations of MatPtAPNumeric_SeqAIJ_SeqAIJ()
for trade of between speed and memory

Hg-commit: e1dcb1718da62b668ab4e1d5fdea181947a15dc1

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set C->ops->matmult in symbolic MatMatMult to skip dispatch in the case of MAT_REUSE_MATRIX

Hg-commit: dde2f4286cc0274d1a97fbab8c2e7bd50c541a10

implement MatMatMultNumeric_SeqAIJ_SeqAIJ with sparse axpy, dense axpy with
1 and 2 dense rows.

Hg-commit: 5f991495eeebe67370cc473a5be101e365765796

add *matmult_abdense into Mat_SeqAIJ for reuse of a dense array in MatMatMult()

Hg-commit: 09d9ea7ae069fdda1dc859de0a1f8876691bac1f

optimize MatMatMultNumeric_SeqAIJ_SeqAIJ() by using dense axpy - takes less than 50% of previous execution time!

Hg-commit: f3b04e8563c249e8a61348022e6249e2cf0044b4

trivial optimize MatPtAP for seqaij

Hg-commit: 124c1c8245c5f023ca93a8a3cf6981d7a1ddf330

optimize MatPtAPSymbolic_SeqAIJ_SeqAIJ()

Hg-commit: 25c3c1a6e6de051abe9e437c6e237fd5602e65ae

factor MatGetSymbolicMatMatMult_SeqAIJ_SeqAIJ() out of MatMatMultSymbolic() for reuse.

Hg-commit: 030df347c88533d1538de1ad3eef42fcbf8ae2c6

Remove // comments

Hg-commit: 853155ddf7b9d017e0a9fe67a7086c335bfd02f1

fix c89 syntax

Hg-commit: 8dc2d484291d62f2aaac603fac24dd7eaff730f0

optimize MatPtAPNumeric_SeqAIJ_SeqAIJ() by reuse symbolic A*P to avoid if() inside loops

Hg-commit: 7dca5d8fc32dd860cdf0ccc377b12b957b297ce5

set options.RowPerm = LargeDiag as default since the bug is fixed in superlu now.

Hg-commit: de0fd1e57ebfb8a7b63c92139ed9de296ac8c3cb

update makefile after rename matpapt.c as matrart.c

Hg-commit: 8c8383e7a0ca6e723e45a09f6902ab65c039178c

rename file matpapt.c -> matrart.c

Hg-commit: 6029ae2bebc9fb7fd4d47d77498fa1d7a883bd89

cleanup matpapt.c

Hg-commit: d9078f4e64125b4173cae88e235a254c740f6e6a

rename struct Mat_MatMatMultTrans -> Mat_MatMatTransMult

Hg-commit: 88448b1248a6ce42f3d402f6b883b3202a176bfc

cleanup matmatmult.c

Hg-commit: 2b84632ba63a57a45bea803c2333d025cf513901

add option of dense axpy in MatPtAPNumeric_SeqAIJ_SeqAIJ() for better performance
when cnz is not too large than apnz.

Hg-commit: 1f7a0d69e54d977aa3df4e3f8b3dd84c1d80cae3