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id2
geoperil
easyWave
Commits
46df63b3
Commit
46df63b3
authored
Nov 09, 2013
by
Johannes Spazier
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Plain Diff
- Prefer L1-cache.
- Run *Update- and *Boundary-kernels in different streams and thus concurrently.
parent
ddec049d
Changes
1
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1 changed file
with
4 additions
and
38 deletions
+4
-38
cpu/branches/multi-gpu/ewGpuNode.cu
cpu/branches/multi-gpu/ewGpuNode.cu
+4
-38
No files found.
cpu/branches/multi-gpu/ewGpuNode.cu
View file @
46df63b3
...
...
@@ -19,6 +19,8 @@ CGpuNode::CGpuNode() {
cudaSetDevice
(
j
);
cudaDeviceSetCacheConfig
(
cudaFuncCachePreferL1
);
gpus
[
j
].
id
=
j
;
for
(
int
i
=
0
;
i
<
gpus
[
j
].
NEVENTS
;
i
++
)
{
...
...
@@ -377,31 +379,13 @@ int CGpuNode::run() {
if
(
isActive
(
vgpu
)
)
{
runWaveUpdateKernel
<<<
vgpu
.
blocks
,
vgpu
.
threads
,
0
,
vgpu
.
stream
[
0
]
>>>
(
data
);
runWaveBoundaryKernel
<<<
vgpu
.
nBlocks
,
nThreads
,
0
,
vgpu
.
stream
[
1
]
>>>
(
data
);
}
if
(
Par
.
verbose
&&
vgpu
.
relId
==
vgpu
.
dev
->
maxId
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtEnd
[
0
]
)
);
}
for
(
int
i
=
0
;
i
<
num_virtual_gpus
;
i
++
)
{
VGpu
&
vgpu
=
vgpus
[
i
];
KernelData
&
data
=
vgpu
.
data
;
CUDA_CALL
(
cudaSetDevice
(
vgpu
.
dev
->
id
)
);
if
(
Par
.
verbose
&&
vgpu
.
relId
==
0
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtStart
[
1
]
)
);
if
(
isActive
(
vgpu
)
)
{
runWaveBoundaryKernel
<<<
vgpu
.
nBlocks
,
nThreads
,
0
,
vgpu
.
stream
[
0
]
>>>
(
data
);
}
if
(
Par
.
verbose
&&
vgpu
.
relId
==
vgpu
.
dev
->
maxId
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtEnd
[
1
]
)
);
}
for
(
int
i
=
0
;
i
<
num_virtual_gpus
;
i
++
)
{
VGpu
&
vgpu
=
vgpus
[
i
];
...
...
@@ -460,31 +444,13 @@ int CGpuNode::run() {
if
(
isActive
(
vgpu
)
)
{
runFluxUpdateKernel
<<<
vgpu
.
blocks
,
vgpu
.
threads
,
0
,
vgpu
.
stream
[
0
]
>>>
(
data
);
runFluxBoundaryKernel
<<<
vgpu
.
nBlocks
,
nThreads
,
0
,
vgpu
.
stream
[
1
]
>>>
(
data
);
}
if
(
Par
.
verbose
&&
vgpu
.
relId
==
vgpu
.
dev
->
maxId
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtEnd
[
2
]
)
);
}
for
(
int
i
=
0
;
i
<
num_virtual_gpus
;
i
++
)
{
VGpu
&
vgpu
=
vgpus
[
i
];
KernelData
&
data
=
vgpu
.
data
;
CUDA_CALL
(
cudaSetDevice
(
vgpu
.
dev
->
id
)
);
if
(
Par
.
verbose
&&
vgpu
.
relId
==
0
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtStart
[
3
]
)
);
if
(
isActive
(
vgpu
)
)
{
runFluxBoundaryKernel
<<<
vgpu
.
nBlocks
,
nThreads
,
0
,
vgpu
.
stream
[
0
]
>>>
(
data
);
}
if
(
Par
.
verbose
&&
vgpu
.
relId
==
vgpu
.
dev
->
maxId
)
CUDA_CALL
(
cudaEventRecord
(
vgpu
.
dev
->
evtEnd
[
3
]
)
);
}
for
(
int
i
=
0
;
i
<
num_virtual_gpus
;
i
++
)
{
VGpu
&
vgpu
=
vgpus
[
i
];
...
...
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