1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
==============
Changes: 2.3.0
==============
.. rubric:: General:
- The equivalent of building BOPT=g, BOPT=O versions for
PETSC_ARCH=linux-gnu is now: config/configure.py [options]
-PETSC_ARCH=linux-gnu config/configure.py [options]
--with-debugging=0 -PETSC_ARCH=linux-gnu-opt
- Python bindings added to PETSc. To use, configure with:
--with-python=1 ---with-shared=1 To build, use: 'make python'
after building PETSc libraries. Example in
src/snes/examples/tutorials/ex1.py
- Options database keys -trmalloc[_xxx] are changed to -malloc[_xxx]
- -get_resident_set_size and -trinfo are changed to -memory_info
- PetscTrValid() -> PetscMallocValidate(), PetscTrDebug() ->
PetscMallocDebug()
- -trdebug -> -malloc_debug
- PetscGetResidentSetSize() -> PetscMemoryGetCurrentUsage(), added
PetscMemoryGetMaximumUsage() and PetscMemorySetGetMaximumUsage()
- PetscTrSpace() -> PetscMallocGetCurrentUsage() and
PetscMallocGetMaximumUsage()
- added PetscOptionsEnum() and PetscOptionsGetEnum()
- added PetscBag object for managing user created structs including
initializing them and serializing them.
- removed PetscSetCommWorld(). Now you can directly assign to
PETSC_COMM_WORLD before PetscInitialize().
.. rubric:: Vec:
- Faster generation of VecScatter for many processes when indices
are mostly sorted
- Changed BLAS-type interfaces to PETSc-style:
- VecShift
- VecScale
- VecSet
- VecSetRandom
- VecAXPY
- VecAXPBY
- VecAYPX
- VecMAXPY
- VecWAXPY
- Changed order of arguments in pointwise routines:
- VecPointwiseMult
- VecPointwiseMax
- VecPointwiseMin
- VecPointwiseMaxAbs
- VecPointwiseDivide
.. rubric:: Mat:
- Changed MatConvert to require a reuse parameter to denote inplace
conversion
- Added Cholesky and ICC support to SeqBAIJ
- Added the argument MatFactorInfo to MatLUFactorNumeric() and
MatCholeskyFactorNumeric()
- Faster MatSetValues()
- Faster parallel-matrix vector products
- Changed MatCreate() to take only a communicator
- Added MatSetSize() to specify matrix sizes
- Changed BLAS-type interfaces to PETSc-style:
- MatAXPY
- MatAYPX
- MatScale
- MatShift
- Change MatZeroRows() and MatZeroRowsLocal() to use arrays, and
added IS versions
.. rubric:: PC:
- Added PCILUReorderForNonzeroDiagonal() and
PCLUReorderForNonzeroDiagonal()
- Replace PCLUSetDamping(), PCILUSetDamping(),
PCCholeskySetDamping() and PCICCSetDamping() by
PCFactorSetShiftNonzero(). Change the option database keys
-pc_lu_damping, -pc_ilu_damping, -pc_cholesky_damping and
-pc_icc_damping to -pc_factor_shift_nonzero
- Replace PCLUSetShift(), PCILUSetShift(), PCCholeskySetShift() and
PCICCSetShift() by PCFactorSetShiftPd(). Change the option
database keys -pc_lu_shift, -pc_ilu_shift, -pc_cholesky_shift and
-pc_icc_shift to -pc_factor_shfit_positive_definite
- PCMG: will automatically using the outer pmat operator to define
the finest level operator if not user supplied
- PCMG: added MGUseGalerkin(), -pc_mg_galerkin option to have
coarser grid matrices computed from the finest grid matrix
- PCMG: now does referencing counting on set vectors and
restriction/interpolation matrices so user need not keep reference
to free later
- PCMG: if user does not provide restriction the interpolation is
used and vis versa
- PCMG: if user does not provide Vecs for each level, will
automatically provide them
- All routines that began with MG now begin with PCMG
- Added PCShellSet/GetContext() and removed the context passed into
PCSetApply() and PCSetApplyRichardson()
.. rubric:: KSP:
- -ksp_cg_Hermitian and -ksp_cg_symmetric have been changed to
-ksp_cg_type Hermitian or symmetric
- Changed options for -ksp_gmres_cgs_refinement_type from never or
ifneeded or always to REFINE_NEVER or REFINE_IFNEEDED or
REFINE_ALWAYS
.. rubric:: config/configure.py:
.. rubric:: SNES:
- Changed the name and calling sequence for SNESSetLineSearchCheck()
to SNESLineSearchSetPostCheck() and added a
SNESLineSearchSetPreCheck()
- Changed the names of all SNESxxxxLineSearchyyyy() to
SNESLineSearchxxxxyyyy() per PETSc naming standard.
- Now allow a constant vector to be specified in SNESSolve()
- Removed the Vec argument from SNESSetUp()
- Corrected the order of function and context arguments in:
- SNESGetFunction()
- SNESGetJacobian()
.. rubric:: TS:
.. rubric:: DA:
- Added DAVecGet/RestoreArrayDOF() allowing indexing in the
dimension of degrees of freedom at each point on the lattice.
- Faster DAGlobalToLocal() etc for dof > 1.
.. rubric:: DMMG:
- Consolidated DMMG functionality into the new header file
"petscdmmg.h".
.. rubric:: SYS:
- PetscSetCommWorld() removed. [one can directly do PETSC_COMM_WORLD
= comm - before PetscInitialize()]
.. rubric:: Fortran:
.. rubric:: ExternalPackages:
- ML support added.
|
