LSSTApplications  11.0-13-gbb96280,12.1+18,12.1+7,12.1-1-g14f38d3+72,12.1-1-g16c0db7+5,12.1-1-g5961e7a+84,12.1-1-ge22e12b+23,12.1-11-g06625e2+4,12.1-11-g0d7f63b+4,12.1-19-gd507bfc,12.1-2-g7dda0ab+38,12.1-2-gc0bc6ab+81,12.1-21-g6ffe579+2,12.1-21-gbdb6c2a+4,12.1-24-g941c398+5,12.1-3-g57f6835+7,12.1-3-gf0736f3,12.1-37-g3ddd237,12.1-4-gf46015e+5,12.1-5-g06c326c+20,12.1-5-g648ee80+3,12.1-5-gc2189d7+4,12.1-6-ga608fc0+1,12.1-7-g3349e2a+5,12.1-7-gfd75620+9,12.1-9-g577b946+5,12.1-9-gc4df26a+10
LSSTDataManagementBasePackage
threads.h
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1 #ifndef LSST_BASE_THREADS_H
2 #define LSST_BASE_THREADS_H
3 
4 #include <stdexcept>
5 #include <string>
6 
7 namespace lsst {
8 namespace base {
9 
10 extern bool const haveOpenBlas;
11 extern bool const haveMkl;
12 
16 std::string const allowEnvvar = "LSST_ALLOW_IMPLICIT_THREADS";
17 
18 
20 class NoThreadsException : public std::runtime_error {
21 public:
22  NoThreadsException() : std::runtime_error("No threading library is available") {};
23 };
24 
26 bool haveThreads() { return haveOpenBlas || haveMkl; }
27 
31 void setNumThreads(unsigned int numThreads);
32 
37 unsigned int getNumThreads();
38 
56 
57 }} // namespace lsst::base
58 
59 
60 #endif // include guard
bool haveThreads()
Are threaded packages available?
Definition: threads.h:26
bool disableImplicitThreading()
Disable threading that has not been set explicitly.
Definition: threads.cc:132
bool const haveMkl
Is MKL available?
Definition: threads.cc:105
No threading library is available.
Definition: threads.h:20
std::string const allowEnvvar
Environment variable to allow implicit threading.
Definition: threads.h:16
void setNumThreads(unsigned int numThreads)
Set number of threads to use.
Definition: threads.cc:107
unsigned int getNumThreads()
Get maximum number of threads we might use.
Definition: threads.cc:120
bool const haveOpenBlas
Is OpenBLAS available?
Definition: threads.cc:104