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1 // 1 //
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // G4Threading implementation <<
27 // 26 //
28 // Author: Andrea Dotti, 15 February 2013 - Fi << 27 // --------------------------------------------------------------
29 // Revision: Jonathan R. Madsen, 21 February 2 << 28 // GEANT 4 class implementation file
30 // ------------------------------------------- << 29 //
>> 30 // G4Threading.cc
>> 31 //
>> 32 // ---------------------------------------------------------------
>> 33 // Author: Andrea Dotti (15 Feb 2013): First Implementation
>> 34 // ---------------------------------------------------------------
31 35
32 #include "G4Threading.hh" 36 #include "G4Threading.hh"
33 #include "G4AutoDelete.hh" 37 #include "G4AutoDelete.hh"
34 #include "G4AutoLock.hh" 38 #include "G4AutoLock.hh"
35 #include "globals.hh" 39 #include "globals.hh"
36 40
37 #if defined(_WIN32) << 41 #if defined (WIN32)
38 # include <windows.h> << 42 #include <Windows.h>
39 #else 43 #else
40 # include <sys/syscall.h> << 44 #include <unistd.h>
41 # include <sys/types.h> << 45 #include <sys/types.h>
42 # include <unistd.h> << 46 #include <sys/syscall.h>
43 #endif 47 #endif
44 48
45 #if defined(G4MULTITHREADED) 49 #if defined(G4MULTITHREADED)
46 50
47 # include <atomic> << 51 #include <atomic>
48 52
49 namespace 53 namespace
50 { 54 {
51 G4ThreadLocal G4int G4ThreadID = G4Threading << 55 G4ThreadLocal G4int G4ThreadID = G4Threading::MASTER_ID;
52 G4bool isMTAppType = false; << 56 G4bool isMTAppType = false;
53 } // namespace << 57 }
54 58
55 G4Pid_t G4Threading::G4GetPidId() 59 G4Pid_t G4Threading::G4GetPidId()
56 { 60 {
57 // In multithreaded mode return Thread ID << 61 // In multithreaded mode return Thread ID
58 return std::this_thread::get_id(); << 62 return std::this_thread::get_id();
59 } 63 }
60 64
61 G4int G4Threading::G4GetNumberOfCores() 65 G4int G4Threading::G4GetNumberOfCores()
62 { 66 {
63 return std::thread::hardware_concurrency(); << 67 return std::thread::hardware_concurrency();
64 } 68 }
65 69
66 void G4Threading::G4SetThreadId(G4int value) { << 70 void G4Threading::G4SetThreadId(G4int value ) { G4ThreadID = value; }
67 G4int G4Threading::G4GetThreadId() { return G4 71 G4int G4Threading::G4GetThreadId() { return G4ThreadID; }
68 G4bool G4Threading::IsWorkerThread() { return << 72 G4bool G4Threading::IsWorkerThread() { return (G4ThreadID>=0); }
69 G4bool G4Threading::IsMasterThread() { return << 73 G4bool G4Threading::IsMasterThread() { return (G4ThreadID==MASTER_ID); }
70 74
71 # if defined(__linux__) || defined(_AIX) << 75 #if defined(__linux__) || defined(_AIX)
72 G4bool G4Threading::G4SetPinAffinity(G4int cpu 76 G4bool G4Threading::G4SetPinAffinity(G4int cpu, G4NativeThread& aT)
73 { 77 {
74 cpu_set_t* aset = new cpu_set_t; << 78 cpu_set_t* aset = new cpu_set_t;
75 G4AutoDelete::Register(aset); << 79 G4AutoDelete::Register(aset);
76 CPU_ZERO(aset); << 80 CPU_ZERO(aset);
77 CPU_SET(cpu, aset); << 81 CPU_SET(cpu, aset);
78 pthread_t& _aT = (pthread_t&) (aT); << 82 pthread_t& _aT = (pthread_t&) (aT);
79 return (pthread_setaffinity_np(_aT, sizeof(c << 83 return (pthread_setaffinity_np(_aT, sizeof(cpu_set_t), aset) == 0);
80 } 84 }
81 # else // Not available for Mac, WIN,... << 85 #else //Not available for Mac, WIN,...
82 G4bool G4Threading::G4SetPinAffinity(G4int, G4 86 G4bool G4Threading::G4SetPinAffinity(G4int, G4NativeThread&)
83 { 87 {
84 G4Exception("G4Threading::G4SetPinAffinity() << 88 G4Exception("G4Threading::G4SetPinAffinity()",
85 "Affinity setting not available << 89 "NotImplemented", JustWarning,
86 "ignoring..."); << 90 "Affinity setting not available for this architecture, "
87 return true; << 91 "ignoring...");
>> 92 return true;
88 } 93 }
89 # endif << 94 #endif
90 95
91 void G4Threading::SetMultithreadedApplication( 96 void G4Threading::SetMultithreadedApplication(G4bool value)
92 { 97 {
93 isMTAppType = value; << 98 isMTAppType = value;
94 } 99 }
95 100
96 G4bool G4Threading::IsMultithreadedApplication << 101 G4bool G4Threading::IsMultithreadedApplication()
97 <<
98 namespace <<
99 { 102 {
100 std::atomic_int numActThreads(0); << 103 return isMTAppType;
101 } 104 }
102 G4int G4Threading::WorkerThreadLeavesPool() { << 105
103 G4int G4Threading::WorkerThreadJoinsPool() { r << 106 namespace
104 G4int G4Threading::GetNumberOfRunningWorkerThr <<
105 { 107 {
106 return numActThreads.load(); << 108 std::atomic_int numActThreads(0);
107 } 109 }
>> 110 int G4Threading::WorkerThreadLeavesPool() { return numActThreads--; }
>> 111 int G4Threading::WorkerThreadJoinsPool() { return numActThreads++;}
>> 112 G4int G4Threading::GetNumberOfRunningWorkerThreads() { return numActThreads.load(); }
108 113
109 #else // Sequential mode 114 #else // Sequential mode
110 115
111 G4Pid_t G4Threading::G4GetPidId() 116 G4Pid_t G4Threading::G4GetPidId()
112 { 117 {
113 // In sequential mode return Process ID and << 118 // In sequential mode return Process ID and not Thread ID
114 # if defined(WIN32) << 119 #if defined(WIN32)
115 return GetCurrentProcessId(); << 120 return GetCurrentProcessId();
116 # else << 121 #else
117 return getpid(); << 122 return getpid();
118 # endif << 123 #endif
119 } 124 }
120 125
121 G4int G4Threading::G4GetNumberOfCores() { retu 126 G4int G4Threading::G4GetNumberOfCores() { return 1; }
122 G4int G4Threading::G4GetThreadId() { return G4 127 G4int G4Threading::G4GetThreadId() { return G4Threading::SEQUENTIAL_ID; }
123 G4bool G4Threading::IsWorkerThread() { return 128 G4bool G4Threading::IsWorkerThread() { return false; }
124 G4bool G4Threading::IsMasterThread() { return 129 G4bool G4Threading::IsMasterThread() { return true; }
125 void G4Threading::G4SetThreadId(G4int) {} 130 void G4Threading::G4SetThreadId(G4int) {}
126 131
127 G4bool G4Threading::G4SetPinAffinity(G4int, G4 132 G4bool G4Threading::G4SetPinAffinity(G4int, G4NativeThread&) { return true; }
128 133
129 void G4Threading::SetMultithreadedApplication( 134 void G4Threading::SetMultithreadedApplication(G4bool) {}
130 G4bool G4Threading::IsMultithreadedApplication 135 G4bool G4Threading::IsMultithreadedApplication() { return false; }
131 G4int G4Threading::WorkerThreadLeavesPool() { << 136 int G4Threading::WorkerThreadLeavesPool() { return 0; }
132 G4int G4Threading::WorkerThreadJoinsPool() { r << 137 int G4Threading::WorkerThreadJoinsPool() { return 0; }
133 G4int G4Threading::GetNumberOfRunningWorkerThr 138 G4int G4Threading::GetNumberOfRunningWorkerThreads() { return 0; }
134 139
135 #endif 140 #endif
136 141