QUDA
v1.1.0
A library for QCD on GPUs
quda
include
externals
trove
warp.h
Go to the documentation of this file.
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/*
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Copyright (c) 2013, NVIDIA Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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namespace
trove
{
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#define WARP_CONVERGED 0xffffffff
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__device__
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inline
bool
warp_converged
() {
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#if (__CUDACC_VER_MAJOR__ >= 9 || CUDA_VERSION >= 9000)
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return
(__activemask() ==
WARP_CONVERGED
);
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#else
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return
(__ballot(
true
) ==
WARP_CONVERGED
);
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#endif
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}
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#undef WARP_CONVERGED
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#define WARP_SIZE 32
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#define WARP_MASK 0x1f
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#define LOG_WARP_SIZE 5
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}
trove
Definition:
aos.h:38
trove::warp_converged
__device__ bool warp_converged()
Definition:
warp.h:35
WARP_CONVERGED
#define WARP_CONVERGED
Definition:
warp.h:32
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