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test_grid.cpp
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rTAMAAS tamaas
test_grid.cpp
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/**
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2017 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "test.hh"
#include "grid.hh"
#include "grid_view.hh"
using
namespace
tamaas
;
/* -------------------------------------------------------------------------- */
// Testing 1D creation
TEST
(
TestGridCreation
,
Creation1d
)
{
Grid
<
Real
,
1
>
grid
{{
5
},
2
};
std
::
array
<
UInt
,
1
>
correct_size
{{
5
}};
ASSERT_TRUE
(
grid
.
sizes
()
==
correct_size
)
<<
"Wrong sizes"
;
std
::
array
<
UInt
,
2
>
correct_strides
{{
2
,
1
}};
ASSERT_TRUE
(
grid
.
getStrides
()
==
correct_strides
)
<<
"Wrong strides"
;
}
// Testing 2D creation
TEST
(
TestGridCreation
,
Creation2d
)
{
Grid
<
Real
,
2
>
grid
({
5
,
2
},
3
);
std
::
array
<
UInt
,
2
>
correct_size
{{
5
,
2
}};
ASSERT_TRUE
(
grid
.
sizes
()
==
correct_size
)
<<
"Wrong sizes"
;
std
::
array
<
UInt
,
3
>
correct_strides
{{
6
,
3
,
1
}};
ASSERT_TRUE
(
grid
.
getStrides
()
==
correct_strides
)
<<
"Wrong strides"
;
}
// Testing 3D creation
TEST
(
TestGridCreation
,
Creation3d
)
{
Grid
<
Real
,
3
>
grid
({
8
,
5
,
2
},
3
);
std
::
array
<
UInt
,
3
>
correct_size
{{
8
,
5
,
2
}};
ASSERT_TRUE
(
grid
.
sizes
()
==
correct_size
)
<<
"Wrong sizes"
;
std
::
array
<
UInt
,
4
>
correct_strides
{{
30
,
15
,
3
,
1
}};
ASSERT_TRUE
(
grid
.
getStrides
()
==
correct_strides
)
<<
"Wrong strides"
;
}
/* -------------------------------------------------------------------------- */
// Testing iterators in STL function iota
TEST
(
TestGridIterators
,
Iota
)
{
constexpr
UInt
N
=
20
;
Grid
<
UInt
,
1
>
grid
({
N
},
1
);
std
::
iota
(
grid
.
begin
(),
grid
.
end
(),
0
);
const
UInt
*
p
=
grid
.
getInternalData
();
for
(
UInt
i
=
0
;
i
<
N
;
++
i
)
ASSERT_TRUE
(
p
[
i
]
==
i
)
<<
"Iota fill failed"
;
}
// Testing filling grid with OpenMP loop
TEST
(
TestGridIterators
,
OpenMPLoops
)
{
Grid
<
UInt
,
1
>
grid
({
20
},
1
);
#ifndef USE_CUDA
#pragma omp parallel for
#endif
for
(
auto
it
=
grid
.
begin
()
;
it
<
grid
.
end
()
;
++
it
)
{
UInt
i
=
it
-
grid
.
begin
();
*
it
=
i
;
}
std
::
vector
<
UInt
>
correct
(
20
);
std
::
iota
(
correct
.
begin
(),
correct
.
end
(),
0
);
ASSERT_TRUE
(
compare
(
grid
,
correct
))
<<
"Fill using OpenMP loop failed"
;
}
/* -------------------------------------------------------------------------- */
// Testing scalar simple loop-based operators
TEST
(
TestGridOperators
,
LoopOperators
)
{
Grid
<
UInt
,
1
>
grid
({
20
},
1
);
grid
=
1
;
EXPECT_TRUE
(
std
::
all_of
(
grid
.
begin
(),
grid
.
end
(),
[](
UInt
x
)
{
return
x
==
1
;
}))
<<
"Assignement operator failed"
;
grid
+=
1
;
EXPECT_TRUE
(
std
::
all_of
(
grid
.
begin
(),
grid
.
end
(),
[](
UInt
x
)
{
return
x
==
2
;
}))
<<
"Plus-equal operator failed"
;
}
// Testing loop-based functions with reductions
TEST
(
TestGridOperators
,
Stats
)
{
constexpr
UInt
N
=
20
;
Grid
<
Real
,
1
>
grid
({
N
},
1
);
std
::
iota
(
grid
.
begin
(),
grid
.
end
(),
0
);
auto
b
=
grid
.
begin
(),
e
=
grid
.
end
();
Real
min
=
*
std
::
min_element
(
b
,
e
);
Real
max
=
*
std
::
max_element
(
b
,
e
);
Real
acc
=
std
::
accumulate
(
b
,
e
,
0
);
Real
mea
=
acc
/
N
;
Real
var
=
35
;
EXPECT_DOUBLE_EQ
(
grid
.
min
(),
min
)
<<
"Minimum function failed"
;
EXPECT_DOUBLE_EQ
(
grid
.
max
(),
max
)
<<
"Maximum function failed"
;
EXPECT_DOUBLE_EQ
(
grid
.
sum
(),
acc
)
<<
"Sum function failed"
;
EXPECT_DOUBLE_EQ
(
grid
.
mean
(),
mea
)
<<
"Mean function failed"
;
EXPECT_DOUBLE_EQ
(
grid
.
var
(),
var
)
<<
"Var function failed"
;
}
/* -------------------------------------------------------------------------- */
TEST
(
TestGridView
,
View2D
)
{
Grid
<
UInt
,
3
>
grid3d
({
10
,
10
,
10
},
3
);
std
::
iota
(
grid3d
.
begin
(),
grid3d
.
end
(),
0
);
for
(
UInt
i
:
Loop
::
range
(
10
))
{
auto
grid_view
=
make_view
(
grid3d
,
i
);
std
::
vector
<
UInt
>
reference
(
300
);
std
::
iota
(
reference
.
begin
(),
reference
.
end
(),
300
*
i
);
EXPECT_TRUE
(
std
::
equal
(
grid_view
.
begin
(),
grid_view
.
end
(),
reference
.
begin
()));
}
}
/* -------------------------------------------------------------------------- */
TEST
(
TestGridOperators
,
BroadcastOperators
)
{
Grid
<
UInt
,
2
>
grid
({
10
,
10
},
3
),
solution
({
10
,
10
},
3
);
// Filling up solution
Loop
::
stridedLoop
([](
VectorProxy
<
UInt
,
3
>&&
v
)
{
v
(
0
)
=
1
;
v
(
1
)
=
2
;
v
(
2
)
=
3
;
},
solution
);
Vector
<
UInt
,
3
>
v
;
v
(
0
)
=
1
;
v
(
1
)
=
2
;
v
(
2
)
=
3
;
grid
=
v
;
EXPECT_TRUE
(
std
::
equal
(
grid
.
begin
(),
grid
.
end
(),
solution
.
begin
()))
<<
"Broadcast assignement failure"
;
v
(
1
)
=
1
;
v
(
2
)
=
1
;
solution
+=
1
;
grid
+=
v
;
EXPECT_TRUE
(
std
::
equal
(
grid
.
begin
(),
grid
.
end
(),
solution
.
begin
()))
<<
"Broadcast += failure"
;
solution
-=
1
;
grid
-=
v
;
EXPECT_TRUE
(
std
::
equal
(
grid
.
begin
(),
grid
.
end
(),
solution
.
begin
()))
<<
"Broadcast -= failure"
;
v
(
1
)
=
2
;
v
(
2
)
=
3
;
solution
*=
solution
;
grid
*=
v
;
EXPECT_TRUE
(
std
::
equal
(
grid
.
begin
(),
grid
.
end
(),
solution
.
begin
()))
<<
"Broadcast *= failure"
;
Loop
::
stridedLoop
([](
VectorProxy
<
UInt
,
3
>&&
v
)
{
v
(
0
)
=
1
;
v
(
1
)
=
2
;
v
(
2
)
=
3
;
},
solution
);
grid
/=
v
;
EXPECT_TRUE
(
std
::
equal
(
grid
.
begin
(),
grid
.
end
(),
solution
.
begin
()))
<<
"Broadcast /= failure"
;
}
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