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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // G4Threading implementation 26 // G4Threading implementation
27 // 27 //
28 // Author: Andrea Dotti, 15 February 2013 - Fi 28 // Author: Andrea Dotti, 15 February 2013 - First Implementation
29 // Revision: Jonathan R. Madsen, 21 February 2 29 // Revision: Jonathan R. Madsen, 21 February 2018
30 // ------------------------------------------- 30 // --------------------------------------------------------------------
31 31
32 #include "G4Threading.hh" 32 #include "G4Threading.hh"
33 #include "G4AutoDelete.hh" 33 #include "G4AutoDelete.hh"
34 #include "G4AutoLock.hh" 34 #include "G4AutoLock.hh"
35 #include "globals.hh" 35 #include "globals.hh"
36 36
37 #if defined(_WIN32) << 37 #if defined(WIN32)
38 # include <windows.h> << 38 # include <Windows.h>
39 #else 39 #else
40 # include <sys/syscall.h> 40 # include <sys/syscall.h>
41 # include <sys/types.h> 41 # include <sys/types.h>
42 # include <unistd.h> 42 # include <unistd.h>
43 #endif 43 #endif
44 44
45 #if defined(G4MULTITHREADED) 45 #if defined(G4MULTITHREADED)
46 46
47 # include <atomic> 47 # include <atomic>
48 48
49 namespace 49 namespace
50 { 50 {
51 G4ThreadLocal G4int G4ThreadID = G4Threading 51 G4ThreadLocal G4int G4ThreadID = G4Threading::MASTER_ID;
52 G4bool isMTAppType = false; 52 G4bool isMTAppType = false;
53 } // namespace 53 } // namespace
54 54
55 G4Pid_t G4Threading::G4GetPidId() 55 G4Pid_t G4Threading::G4GetPidId()
56 { 56 {
57 // In multithreaded mode return Thread ID 57 // In multithreaded mode return Thread ID
58 return std::this_thread::get_id(); 58 return std::this_thread::get_id();
59 } 59 }
60 60
61 G4int G4Threading::G4GetNumberOfCores() 61 G4int G4Threading::G4GetNumberOfCores()
62 { 62 {
63 return std::thread::hardware_concurrency(); 63 return std::thread::hardware_concurrency();
64 } 64 }
65 65
66 void G4Threading::G4SetThreadId(G4int value) { 66 void G4Threading::G4SetThreadId(G4int value) { G4ThreadID = value; }
67 G4int G4Threading::G4GetThreadId() { return G4 67 G4int G4Threading::G4GetThreadId() { return G4ThreadID; }
68 G4bool G4Threading::IsWorkerThread() { return 68 G4bool G4Threading::IsWorkerThread() { return (G4ThreadID >= 0); }
69 G4bool G4Threading::IsMasterThread() { return 69 G4bool G4Threading::IsMasterThread() { return (G4ThreadID == MASTER_ID); }
70 70
71 # if defined(__linux__) || defined(_AIX) 71 # if defined(__linux__) || defined(_AIX)
72 G4bool G4Threading::G4SetPinAffinity(G4int cpu 72 G4bool G4Threading::G4SetPinAffinity(G4int cpu, G4NativeThread& aT)
73 { 73 {
74 cpu_set_t* aset = new cpu_set_t; 74 cpu_set_t* aset = new cpu_set_t;
75 G4AutoDelete::Register(aset); 75 G4AutoDelete::Register(aset);
76 CPU_ZERO(aset); 76 CPU_ZERO(aset);
77 CPU_SET(cpu, aset); 77 CPU_SET(cpu, aset);
78 pthread_t& _aT = (pthread_t&) (aT); 78 pthread_t& _aT = (pthread_t&) (aT);
79 return (pthread_setaffinity_np(_aT, sizeof(c 79 return (pthread_setaffinity_np(_aT, sizeof(cpu_set_t), aset) == 0);
80 } 80 }
81 # else // Not available for Mac, WIN,... 81 # else // Not available for Mac, WIN,...
82 G4bool G4Threading::G4SetPinAffinity(G4int, G4 82 G4bool G4Threading::G4SetPinAffinity(G4int, G4NativeThread&)
83 { 83 {
84 G4Exception("G4Threading::G4SetPinAffinity() 84 G4Exception("G4Threading::G4SetPinAffinity()", "NotImplemented", JustWarning,
85 "Affinity setting not available 85 "Affinity setting not available for this architecture, "
86 "ignoring..."); 86 "ignoring...");
87 return true; 87 return true;
88 } 88 }
89 # endif 89 # endif
90 90
91 void G4Threading::SetMultithreadedApplication( 91 void G4Threading::SetMultithreadedApplication(G4bool value)
92 { 92 {
93 isMTAppType = value; 93 isMTAppType = value;
94 } 94 }
95 95
96 G4bool G4Threading::IsMultithreadedApplication 96 G4bool G4Threading::IsMultithreadedApplication() { return isMTAppType; }
97 97
98 namespace 98 namespace
99 { 99 {
100 std::atomic_int numActThreads(0); 100 std::atomic_int numActThreads(0);
101 } 101 }
102 G4int G4Threading::WorkerThreadLeavesPool() { 102 G4int G4Threading::WorkerThreadLeavesPool() { return --numActThreads; }
103 G4int G4Threading::WorkerThreadJoinsPool() { r 103 G4int G4Threading::WorkerThreadJoinsPool() { return ++numActThreads; }
104 G4int G4Threading::GetNumberOfRunningWorkerThr 104 G4int G4Threading::GetNumberOfRunningWorkerThreads()
105 { 105 {
106 return numActThreads.load(); 106 return numActThreads.load();
107 } 107 }
108 108
109 #else // Sequential mode 109 #else // Sequential mode
110 110
111 G4Pid_t G4Threading::G4GetPidId() 111 G4Pid_t G4Threading::G4GetPidId()
112 { 112 {
113 // In sequential mode return Process ID and 113 // In sequential mode return Process ID and not Thread ID
114 # if defined(WIN32) 114 # if defined(WIN32)
115 return GetCurrentProcessId(); 115 return GetCurrentProcessId();
116 # else 116 # else
117 return getpid(); 117 return getpid();
118 # endif 118 # endif
119 } 119 }
120 120
121 G4int G4Threading::G4GetNumberOfCores() { retu 121 G4int G4Threading::G4GetNumberOfCores() { return 1; }
122 G4int G4Threading::G4GetThreadId() { return G4 122 G4int G4Threading::G4GetThreadId() { return G4Threading::SEQUENTIAL_ID; }
123 G4bool G4Threading::IsWorkerThread() { return 123 G4bool G4Threading::IsWorkerThread() { return false; }
124 G4bool G4Threading::IsMasterThread() { return 124 G4bool G4Threading::IsMasterThread() { return true; }
125 void G4Threading::G4SetThreadId(G4int) {} 125 void G4Threading::G4SetThreadId(G4int) {}
126 126
127 G4bool G4Threading::G4SetPinAffinity(G4int, G4 127 G4bool G4Threading::G4SetPinAffinity(G4int, G4NativeThread&) { return true; }
128 128
129 void G4Threading::SetMultithreadedApplication( 129 void G4Threading::SetMultithreadedApplication(G4bool) {}
130 G4bool G4Threading::IsMultithreadedApplication 130 G4bool G4Threading::IsMultithreadedApplication() { return false; }
131 G4int G4Threading::WorkerThreadLeavesPool() { 131 G4int G4Threading::WorkerThreadLeavesPool() { return 0; }
132 G4int G4Threading::WorkerThreadJoinsPool() { r 132 G4int G4Threading::WorkerThreadJoinsPool() { return 0; }
133 G4int G4Threading::GetNumberOfRunningWorkerThr 133 G4int G4Threading::GetNumberOfRunningWorkerThreads() { return 0; }
134 134
135 #endif 135 #endif
136 136