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from petsc4py import PETSc
import unittest
# --------------------------------------------------------------------
class BaseTestDA:
COMM = PETSc.COMM_WORLD
SIZES = None
BOUNDARY = None
DOF = 1
STENCIL = PETSc.DMDA.StencilType.STAR
SWIDTH = 1
def setUp(self):
self.da = PETSc.DMDA().create(
dim=len(self.SIZES),
dof=self.DOF,
sizes=self.SIZES,
boundary_type=self.BOUNDARY,
stencil_type=self.STENCIL,
stencil_width=self.SWIDTH,
comm=self.COMM,
)
def tearDown(self):
self.da = None
PETSc.garbage_cleanup()
def testGetInfo(self):
dim = self.da.getDim()
dof = self.da.getDof()
sizes = self.da.getSizes()
boundary = self.da.getBoundaryType()
stencil_type = self.da.getStencilType()
stencil_width = self.da.getStencilWidth()
self.assertEqual(dim, len(self.SIZES))
self.assertEqual(dof, self.DOF)
self.assertEqual(sizes, tuple(self.SIZES))
self.assertEqual(boundary, self.BOUNDARY or (0,) * dim)
self.assertEqual(stencil_type, self.STENCIL)
self.assertEqual(stencil_width, self.SWIDTH)
def testRangesCorners(self):
dim = self.da.getDim()
ranges = self.da.getRanges()
starts, lsizes = self.da.getCorners()
self.assertEqual(dim, len(ranges))
self.assertEqual(dim, len(starts))
self.assertEqual(dim, len(lsizes))
for i in range(dim):
s, e = ranges[i]
self.assertEqual(s, starts[i])
self.assertEqual(e - s, lsizes[i])
def testGhostRangesCorners(self):
dim = self.da.getDim()
ranges = self.da.getGhostRanges()
starts, lsizes = self.da.getGhostCorners()
self.assertEqual(dim, len(ranges))
self.assertEqual(dim, len(starts))
self.assertEqual(dim, len(lsizes))
for i in range(dim):
s, e = ranges[i]
self.assertEqual(s, starts[i])
self.assertEqual(e - s, lsizes[i])
def testOwnershipRanges(self):
ownership_ranges = self.da.getOwnershipRanges()
procsizes = self.da.getProcSizes()
self.assertEqual(len(procsizes), len(ownership_ranges))
for i, m in enumerate(procsizes):
self.assertEqual(m, len(ownership_ranges[i]))
def testFieldName(self):
for i in range(self.da.getDof()):
self.da.setFieldName(i, 'field%d' % i)
for i in range(self.da.getDof()):
name = self.da.getFieldName(i)
self.assertEqual(name, 'field%d' % i)
def testCoordinates(self):
self.da.setUniformCoordinates(0, 1, 0, 1, 0, 1)
#
c = self.da.getCoordinates()
self.da.setCoordinates(c)
c.destroy()
cda = self.da.getCoordinateDM()
cda.destroy()
#
c = self.da.getCoordinates()
self.da.setCoordinates(c)
c.destroy()
gc = self.da.getCoordinatesLocal()
gc.destroy()
def testCreateVecMat(self):
vn = self.da.createNaturalVec()
vg = self.da.createGlobalVec()
vl = self.da.createLocalVec()
mat = self.da.createMat()
self.assertTrue(mat.getType() in ('aij', 'seqaij', 'mpiaij'))
vn.set(1.0)
self.da.naturalToGlobal(vn, vg)
self.assertEqual(vg.max()[1], 1.0)
self.assertEqual(vg.min()[1], 1.0)
self.da.globalToLocal(vg, vl)
self.assertEqual(vl.max()[1], 1.0)
self.assertTrue(vl.min()[1] in (1.0, 0.0))
vn.set(0.0)
self.da.globalToNatural(vg, vn)
self.assertEqual(vn.max()[1], 1.0)
self.assertEqual(vn.min()[1], 1.0)
vl2 = self.da.createLocalVec()
self.da.localToLocal(vl, vl2)
self.assertEqual(vl2.max()[1], 1.0)
self.assertTrue(vl2.min()[1] in (1.0, 0.0))
NONE = PETSc.DM.BoundaryType.NONE
btype = self.da.boundary_type
psize = self.da.proc_sizes
for b, p in zip(btype, psize):
if b != NONE and p == 1:
return
vg2 = self.da.createGlobalVec()
self.da.localToGlobal(vl2, vg2)
def testGetVec(self):
vg = self.da.getGlobalVec()
vl = self.da.getLocalVec()
try:
vg.set(1.0)
self.assertEqual(vg.max()[1], 1.0)
self.assertEqual(vg.min()[1], 1.0)
self.da.globalToLocal(vg, vl)
self.assertEqual(vl.max()[1], 1.0)
self.assertTrue(vl.min()[1] in (1.0, 0.0))
vl.set(2.0)
NONE = PETSc.DM.BoundaryType.NONE
btype = self.da.boundary_type
psize = self.da.proc_sizes
for b, p in zip(btype, psize):
if b != NONE and p == 1:
return
self.da.localToGlobal(vl, vg)
self.assertEqual(vg.max()[1], 2.0)
self.assertTrue(vg.min()[1] in (2.0, 0.0))
finally:
self.da.restoreGlobalVec(vg)
self.da.restoreLocalVec(vl)
self.assertFalse(vg)
self.assertFalse(vl)
name = 'abcd'
vg = self.da.getGlobalVec(name)
vg.set(4.0)
self.da.restoreGlobalVec(vg, name)
self.assertFalse(vg)
vg = self.da.getGlobalVec()
vg.setRandom()
self.da.restoreGlobalVec(vg)
vg = self.da.getGlobalVec(name)
vg.shift(-4.0)
self.assertEqual(vg.max()[1], 0.0)
self.da.restoreGlobalVec(vg, name)
vl = self.da.getLocalVec(name)
vl.set(4.0)
self.da.restoreLocalVec(vl, name)
self.assertFalse(vl)
vl = self.da.getLocalVec()
vl.setRandom()
self.da.restoreLocalVec(vl)
vl = self.da.getLocalVec(name)
vl.shift(-4.0)
self.assertEqual(vl.max()[1], 0.0)
self.da.restoreLocalVec(vl, name)
def testGetArray(self):
for r in [True, False]:
vg = self.da.getGlobalVec()
vl = self.da.getLocalVec()
ag = self.da.getVecArray(vg, readonly=r)
al = self.da.getVecArray(vl, readonly=r)
# test reading lower-left and upper-right corners
ranges = self.da.getRanges()
ranges = list(zip(*ranges))
dim = len(ranges[0])
if dim == 1:
_ = ag[ranges[0][0] : ranges[1][0]]
_ = al[ranges[0][0] : ranges[1][0]]
elif dim == 2:
_ = ag[ranges[0][0] : ranges[1][0], ranges[0][1] : ranges[1][1]]
_ = al[ranges[0][0] : ranges[1][0], ranges[0][1] : ranges[1][1]]
elif dim == 3:
_ = ag[
ranges[0][0] : ranges[1][0],
ranges[0][1] : ranges[1][1],
ranges[0][2] : ranges[1][2],
]
_ = al[
ranges[0][0] : ranges[1][0],
ranges[0][1] : ranges[1][1],
ranges[0][2] : ranges[1][2],
]
# test writing
if not r:
ag[:] = 1.0
al[:] = 1.0
else:
with self.assertRaises(ValueError):
ag[:] = 1.0
with self.assertRaises(ValueError):
al[:] = 1.0
self.da.restoreGlobalVec(vg)
self.da.restoreLocalVec(vl)
def testGetOther(self):
_ = self.da.getAO()
_ = self.da.getLGMap()
_, _ = self.da.getScatter()
def testRefineCoarsen(self):
da = self.da
rda = da.refine()
self.assertEqual(da.getDim(), rda.getDim())
self.assertEqual(da.getDof(), rda.getDof())
if da.dim != 1:
self.assertEqual(da.getStencilType(), rda.getStencilType())
self.assertEqual(da.getStencilWidth(), rda.getStencilWidth())
cda = rda.coarsen()
self.assertEqual(rda.getDim(), cda.getDim())
self.assertEqual(rda.getDof(), cda.getDof())
for n1, n2 in zip(self.da.getSizes(), cda.getSizes()):
self.assertTrue(abs(n1 - n2) <= 1)
def testCoarsenRefine(self):
if PETSc.COMM_WORLD.getSize() > 6:
return
da = self.da
cda = self.da.coarsen()
self.assertEqual(da.getDim(), cda.getDim())
self.assertEqual(da.getDof(), cda.getDof())
if da.dim != 1:
self.assertEqual(da.getStencilType(), cda.getStencilType())
self.assertEqual(da.getStencilWidth(), cda.getStencilWidth())
rda = cda.refine()
for n1, n2 in zip(self.da.getSizes(), rda.getSizes()):
self.assertTrue(abs(n1 - n2) <= 1)
def testRefineHierarchy(self):
levels = self.da.refineHierarchy(2)
self.assertTrue(isinstance(levels, list))
self.assertEqual(len(levels), 2)
for item in levels:
self.assertTrue(isinstance(item, PETSc.DM))
def testCoarsenHierarchy(self):
if PETSc.COMM_WORLD.getSize() > 6:
return
levels = self.da.coarsenHierarchy(2)
self.assertTrue(isinstance(levels, list))
self.assertEqual(len(levels), 2)
for item in levels:
self.assertTrue(isinstance(item, PETSc.DM))
def testCreateInterpolation(self):
da = self.da
if da.dim == 1:
return
rda = da.refine()
_, _ = da.createInterpolation(rda)
def testCreateInjection(self):
if PETSc.COMM_WORLD.getSize() > 6:
return
da = self.da
if da.dim == 1:
return
rda = da.refine()
_ = da.createInjection(rda)
def testzeroRowsColumnsStencil(self):
da = self.da
A = da.createMatrix()
x = da.createGlobalVector()
x.set(2.0)
A.setDiagonal(x)
diag1 = x.duplicate()
A.getDiagonal(diag1)
if self.SIZES != 2: # only coded test for 2D case
return
istart, iend, jstart, jend = da.getRanges()
self.assertTrue(x.equal(diag1))
zeroidx = []
for i in range(istart, iend):
for j in range(jstart, jend):
row = PETSc.Mat.Stencil()
row.index = (i, j)
zeroidx = zeroidx + [row]
diag2 = x.duplicate()
diag2.set(1.0)
A.zeroRowsColumnsStencil(zeroidx, 1.0, x, diag2)
ans = x.duplicate()
ans.set(2.0)
self.assertTrue(ans.equal(diag2))
MIRROR = PETSc.DMDA.BoundaryType.MIRROR
GHOSTED = PETSc.DMDA.BoundaryType.GHOSTED
PERIODIC = PETSc.DMDA.BoundaryType.PERIODIC
TWIST = PETSc.DMDA.BoundaryType.TWIST
SCALE = 4
class BaseTestDA_1D(BaseTestDA):
SIZES = [100 * SCALE]
class BaseTestDA_2D(BaseTestDA):
SIZES = [9 * SCALE, 11 * SCALE]
class BaseTestDA_3D(BaseTestDA):
SIZES = [6 * SCALE, 7 * SCALE, 8 * SCALE]
# --------------------------------------------------------------------
class TestDA_1D(BaseTestDA_1D, unittest.TestCase):
pass
class TestDA_1D_W0(TestDA_1D):
SWIDTH = 0
class TestDA_1D_W2(TestDA_1D):
SWIDTH = 2
class TestDA_2D(BaseTestDA_2D, unittest.TestCase):
pass
class TestDA_2D_W0(TestDA_2D):
SWIDTH = 0
class TestDA_2D_W0_N2(TestDA_2D):
DOF = 2
SWIDTH = 0
class TestDA_2D_W2(TestDA_2D):
SWIDTH = 2
class TestDA_2D_W2_N2(TestDA_2D):
DOF = 2
SWIDTH = 2
class TestDA_2D_PXY(TestDA_2D):
SIZES = [13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 5
BOUNDARY = (PERIODIC,) * 2
class TestDA_2D_GXY(TestDA_2D):
SIZES = [13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 5
BOUNDARY = (GHOSTED,) * 2
class TestDA_2D_TXY(TestDA_2D):
SIZES = [13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 5
BOUNDARY = (TWIST,) * 2
class TestDA_3D(BaseTestDA_3D, unittest.TestCase):
pass
class TestDA_3D_W0(TestDA_3D):
SWIDTH = 0
class TestDA_3D_W0_N2(TestDA_3D):
DOF = 2
SWIDTH = 0
class TestDA_3D_W2(TestDA_3D):
SWIDTH = 2
class TestDA_3D_W2_N2(TestDA_3D):
DOF = 2
SWIDTH = 2
class TestDA_3D_PXYZ(TestDA_3D):
SIZES = [11 * SCALE, 13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 3
BOUNDARY = (PERIODIC,) * 3
class TestDA_3D_GXYZ(TestDA_3D):
SIZES = [11 * SCALE, 13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 3
BOUNDARY = (GHOSTED,) * 3
class TestDA_3D_TXYZ(TestDA_3D):
SIZES = [11 * SCALE, 13 * SCALE, 17 * SCALE]
DOF = 2
SWIDTH = 3
BOUNDARY = (TWIST,) * 3
# --------------------------------------------------------------------
DIM = (
1,
2,
3,
)
DOF = (
None,
1,
2,
3,
4,
5,
)
BOUNDARY_TYPE = (
None,
'none',
(0,) * 3,
0,
'ghosted',
(GHOSTED,) * 3,
GHOSTED,
'periodic',
(PERIODIC,) * 3,
PERIODIC,
'twist',
(TWIST,) * 3,
TWIST,
)
STENCIL_TYPE = (None, 'star', 'box')
STENCIL_WIDTH = (None, 0, 1, 2, 3)
DIM = (1, 2, 3)
DOF = (None, 2, 5)
BOUNDARY_TYPE = (None, 'none', 'periodic', 'ghosted', 'twist')
STENCIL_TYPE = (None, 'box')
STENCIL_WIDTH = (None, 1, 2)
class TestDACreate(unittest.TestCase):
pass
counter = 0
for dim in DIM:
for dof in DOF:
for boundary in BOUNDARY_TYPE:
if isinstance(boundary, tuple):
boundary = boundary[:dim]
for stencil in STENCIL_TYPE:
for width in STENCIL_WIDTH:
kargs = {
'sizes': [8 * SCALE] * dim,
'dim': dim,
'dof': dof,
'boundary_type': boundary,
'stencil_type': stencil,
'stencil_width': width,
}
def testCreate(self, kargs=kargs):
kargs = dict(kargs)
da = PETSc.DMDA().create(**kargs)
da.destroy()
setattr(TestDACreate, 'testCreate%04d' % counter, testCreate)
del testCreate, kargs
counter += 1
del counter, dim, dof, boundary, stencil, width
class TestDADuplicate(unittest.TestCase):
pass
counter = 0
for dim in DIM:
for dof in DOF:
for boundary in BOUNDARY_TYPE:
if isinstance(boundary, tuple):
boundary = boundary[:dim]
for stencil in STENCIL_TYPE:
for width in STENCIL_WIDTH:
kargs = {
'dim': dim,
'dof': dof,
'boundary_type': boundary,
'stencil_type': stencil,
'stencil_width': width,
}
def testDuplicate(self, kargs=kargs):
kargs = dict(kargs)
dim = kargs.pop('dim')
dof = kargs['dof']
boundary = kargs['boundary_type']
stencil = kargs['stencil_type']
width = kargs['stencil_width']
da = PETSc.DMDA().create([8 * SCALE] * dim)
newda = da.duplicate(**kargs)
self.assertEqual(newda.dim, da.dim)
self.assertEqual(newda.sizes, da.sizes)
self.assertEqual(newda.proc_sizes, da.proc_sizes)
self.assertEqual(newda.ranges, da.ranges)
self.assertEqual(newda.corners, da.corners)
if (
newda.boundary_type == da.boundary_type
and newda.stencil_width == da.stencil_width
):
self.assertEqual(newda.ghost_ranges, da.ghost_ranges)
self.assertEqual(newda.ghost_corners, da.ghost_corners)
if dof is None:
dof = da.dof
if boundary is None:
boundary = da.boundary_type
elif boundary == 'none':
boundary = (0,) * dim
elif boundary == 'mirror':
boundary = (MIRROR,) * dim
elif boundary == 'ghosted':
boundary = (GHOSTED,) * dim
elif boundary == 'periodic':
boundary = (PERIODIC,) * dim
elif boundary == 'twist':
boundary = (TWIST,) * dim
elif isinstance(boundary, int):
boundary = (boundary,) * dim
if stencil is None:
stencil = da.stencil[0]
if width is None:
width = da.stencil_width
self.assertEqual(newda.dof, dof)
self.assertEqual(newda.boundary_type, boundary)
if dim == 1:
self.assertEqual(newda.stencil, (stencil, width))
newda.destroy()
da.destroy()
setattr(
TestDADuplicate, 'testDuplicate%04d' % counter, testDuplicate
)
del testDuplicate, kargs
counter += 1
del counter, dim, dof, boundary, stencil, width
# --------------------------------------------------------------------
if PETSc.COMM_WORLD.getSize() > 1:
del TestDA_1D_W0
del TestDA_2D_W0, TestDA_2D_W0_N2
del TestDA_3D_W0, TestDA_3D_W0_N2
# --------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
# --------------------------------------------------------------------
|
