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profiling.h
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1 /*
2  * nvbio
3  * Copyright (c) 2011-2014, NVIDIA CORPORATION. All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
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8  * notice, this list of conditions and the following disclaimer.
9  * * Redistributions in binary form must reproduce the above copyright
10  * notice, this list of conditions and the following disclaimer in the
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12  * * Neither the name of the NVIDIA CORPORATION nor the
13  * names of its contributors may be used to endorse or promote products
14  * derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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25  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #pragma once
29 
30 #include <nvbio/basic/types.h>
31 
32 namespace nvbio {
33 
34 #if defined(NVBIO_ENABLE_PROFILING)
35 #if defined(__CUDA_ARCH__)
36 #define NVBIO_INC_UTILIZATION(v1,v2) \
37 do { \
38  atomicAdd( (uint32*)&v1, 1 ); \
39  const uint32 mask = __ballot(true); \
40  if (__popc( mask >> warp_tid() ) == 1) \
41  v2 += 32; \
42 } while (0)
43 #define NVBIO_STATS_SET(x,v) x = v
44 #define NVBIO_STATS_ADD(x,v) x += v
45 #else
46 #define NVBIO_INC_UTILIZATION(v1,v2)
47 #define NVBIO_STATS_SET(x,v) x = v
48 #define NVBIO_STATS_ADD(x,v) x += v
49 #define NVBIO_STATS(stmnt) stmnt
50 #endif
51 #else
52 #define NVBIO_INC_UTILIZATION(v1,v2)
53 #define NVBIO_STATS_SET(x,v)
54 #define NVBIO_STATS_ADD(x,v)
55 #define NVBIO_STATS(stmnt)
56 #endif
57 
58 } // namespace nvbio