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VectorPartitioned.cpp
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Mon, Oct 14, 20:42
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Wed, Oct 16, 20:42 (2 d)
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rGOOSEFEM GooseFEM
VectorPartitioned.cpp
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#include "support.h"
TEST_CASE
(
"GooseFEM::VectorPartitioned"
,
"VectorPartitioned.h"
)
{
SECTION
(
"asDofs"
)
{
// mesh
GooseFEM
::
Mesh
::
Quad4
::
Regular
mesh
(
9
,
9
);
// prescribed DOFs
xt
::
xtensor
<
size_t
,
2
>
dofs
=
mesh
.
dofs
();
xt
::
xtensor
<
size_t
,
1
>
nodesLeft
=
mesh
.
nodesLeftOpenEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesRight
=
mesh
.
nodesRightOpenEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesTop
=
mesh
.
nodesTopEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesBottom
=
mesh
.
nodesBottomEdge
();
for
(
size_t
i
=
0
;
i
<
nodesLeft
.
size
();
++
i
)
for
(
size_t
j
=
0
;
j
<
mesh
.
ndim
();
++
j
)
dofs
(
nodesRight
(
i
),
j
)
=
dofs
(
nodesLeft
(
i
),
j
);
xt
::
xtensor
<
size_t
,
1
>
iip
=
xt
::
empty
<
size_t
>
({
4
*
nodesBottom
.
size
()});
size_t
i
=
0
;
for
(
auto
&
n
:
nodesTop
)
{
iip
(
i
)
=
dofs
(
n
,
0
);
++
i
;
}
for
(
auto
&
n
:
nodesTop
)
{
iip
(
i
)
=
dofs
(
n
,
1
);
++
i
;
}
for
(
auto
&
n
:
nodesBottom
)
{
iip
(
i
)
=
dofs
(
n
,
0
);
++
i
;
}
for
(
auto
&
n
:
nodesBottom
)
{
iip
(
i
)
=
dofs
(
n
,
1
);
++
i
;
}
// random displacement
xt
::
xtensor
<
double
,
2
>
u
=
xt
::
random
::
randn
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
for
(
size_t
i
=
0
;
i
<
nodesLeft
.
size
();
++
i
)
for
(
size_t
j
=
0
;
j
<
mesh
.
ndim
();
++
j
)
u
(
nodesRight
(
i
),
j
)
=
u
(
nodesLeft
(
i
),
j
);
// vector-definition
GooseFEM
::
VectorPartitioned
vector
(
mesh
.
conn
(),
dofs
,
iip
);
// convert
xt
::
xtensor
<
double
,
1
>
u_u
=
vector
.
AsDofs_u
(
u
);
xt
::
xtensor
<
double
,
1
>
u_p
=
vector
.
AsDofs_p
(
u
);
REQUIRE
(
xt
::
allclose
(
u
,
vector
.
AsNode
(
u_u
,
u_p
)));
}
SECTION
(
"copy_u, copy_p"
)
{
// mesh
GooseFEM
::
Mesh
::
Quad4
::
Regular
mesh
(
9
,
9
);
// prescribed DOFs
xt
::
xtensor
<
size_t
,
2
>
dofs
=
mesh
.
dofs
();
xt
::
xtensor
<
size_t
,
1
>
nodesLeft
=
mesh
.
nodesLeftOpenEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesRight
=
mesh
.
nodesRightOpenEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesTop
=
mesh
.
nodesTopEdge
();
xt
::
xtensor
<
size_t
,
1
>
nodesBottom
=
mesh
.
nodesBottomEdge
();
for
(
size_t
i
=
0
;
i
<
nodesLeft
.
size
();
++
i
)
for
(
size_t
j
=
0
;
j
<
mesh
.
ndim
();
++
j
)
dofs
(
nodesRight
(
i
),
j
)
=
dofs
(
nodesLeft
(
i
),
j
);
xt
::
xtensor
<
size_t
,
1
>
iip
=
xt
::
empty
<
size_t
>
({
4
*
nodesBottom
.
size
()});
size_t
i
=
0
;
for
(
auto
&
n
:
nodesTop
)
{
iip
(
i
)
=
dofs
(
n
,
0
);
++
i
;
}
for
(
auto
&
n
:
nodesTop
)
{
iip
(
i
)
=
dofs
(
n
,
1
);
++
i
;
}
for
(
auto
&
n
:
nodesBottom
)
{
iip
(
i
)
=
dofs
(
n
,
0
);
++
i
;
}
for
(
auto
&
n
:
nodesBottom
)
{
iip
(
i
)
=
dofs
(
n
,
1
);
++
i
;
}
// random displacement
xt
::
xtensor
<
double
,
2
>
u
=
xt
::
random
::
randn
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
for
(
size_t
i
=
0
;
i
<
nodesLeft
.
size
();
++
i
)
for
(
size_t
j
=
0
;
j
<
mesh
.
ndim
();
++
j
)
u
(
nodesRight
(
i
),
j
)
=
u
(
nodesLeft
(
i
),
j
);
// vector-definition
GooseFEM
::
VectorPartitioned
vector
(
mesh
.
conn
(),
dofs
,
iip
);
// convert
xt
::
xtensor
<
double
,
2
>
v
=
xt
::
empty
<
double
>
({
mesh
.
nnode
(),
mesh
.
ndim
()});
vector
.
copy_u
(
u
,
v
);
vector
.
copy_p
(
u
,
v
);
REQUIRE
(
xt
::
allclose
(
u
,
v
));
}
}
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