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Functions.h
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1 //=================================================================================================
33 //=================================================================================================
34 
35 #ifndef _BLAZE_MATH_SMP_OPENMP_FUNCTIONS_H_
36 #define _BLAZE_MATH_SMP_OPENMP_FUNCTIONS_H_
37 
38 
39 //*************************************************************************************************
40 // Includes
41 //*************************************************************************************************
42 
43 #include <stdexcept>
44 #include <omp.h>
45 #include <blaze/system/Inline.h>
46 #include <blaze/system/SMP.h>
48 #include <blaze/util/Types.h>
49 
50 
51 namespace blaze {
52 
53 //=================================================================================================
54 //
55 // SMP UTILITY FUNCTIONS
56 //
57 //=================================================================================================
58 
59 //*************************************************************************************************
71 {
72  return omp_get_max_threads();
73 }
75 //*************************************************************************************************
76 
77 
78 //*************************************************************************************************
91 BLAZE_ALWAYS_INLINE size_t setNumThreads( size_t number )
92 {
93  if( number == 0UL )
94  throw std::invalid_argument( "Invalid number of threads" );
95 
96  omp_set_num_threads( number );
97 }
99 //*************************************************************************************************
100 
101 
102 //*************************************************************************************************
128 {}
130 //*************************************************************************************************
131 
132 
133 
134 
135 //=================================================================================================
136 //
137 // COMPILE TIME CONSTRAINTS
138 //
139 //=================================================================================================
140 
141 //*************************************************************************************************
143 namespace {
144 
146 
147 }
149 //*************************************************************************************************
150 
151 } // namespace blaze
152 
153 #endif
#define BLAZE_ALWAYS_INLINE
Platform dependent setup of an enforced inline keyword.
Definition: Inline.h:85
Compile time assertion.
System settings for the shared-memory parallelization.
BLAZE_ALWAYS_INLINE void shutDownThreads()
Provides a reliable shutdown of C++11 threads for Visual Studio compilers.
Definition: Functions.h:128
BLAZE_ALWAYS_INLINE void setNumThreads(size_t number)
Sets the number of threads to be used for thread parallel operations.
Definition: Functions.h:97
#define BLAZE_OPENMP_PARALLEL_MODE
Compilation switch for the OpenMP parallelization.This compilation switch enables/disables the OpenMP...
Definition: SMP.h:67
Header file for basic type definitions.
#define BLAZE_STATIC_ASSERT(expr)
Compile time assertion macro.In case of an invalid compile time expression, a compilation error is cr...
Definition: StaticAssert.h:143
System settings for the inline keywords.
BLAZE_ALWAYS_INLINE size_t getNumThreads()
Returns the number of threads used for thread parallel operations.
Definition: Functions.h:77