reducers.hpp File Reference

Go to the source code of this file.

Classes
struct	mfem::DevicePair< A, B >
	Pair of values which can be used in device code. More...
struct	mfem::MinMaxLocScalar< A, B >
	Two pairs for the min/max values and their location indices. More...
struct	mfem::SumReducer< T >
	a += b More...
struct	mfem::MultReducer< T >
	a *= b More...
struct	mfem::BAndReducer< T >
	a &= b More...
struct	mfem::BOrReducer< T >
	a |= b More...
struct	mfem::MinReducer< T >
	a = min(a,b) More...
struct	mfem::MinReducer< float >
struct	mfem::MinReducer< double >
struct	mfem::MaxReducer< T >
	a = max(a,b) More...
struct	mfem::MaxReducer< float >
struct	mfem::MaxReducer< double >
struct	mfem::MinMaxReducer< T >
	a = minmax(a,b) More...
struct	mfem::MinMaxReducer< float >
struct	mfem::MinMaxReducer< double >
struct	mfem::ArgMinReducer< T, I >
	i = argmin(a[i], a[j]) More...
struct	mfem::ArgMinReducer< float, I >
struct	mfem::ArgMinReducer< double, I >
struct	mfem::ArgMaxReducer< T, I >
	i = argmax(a[i], a[j]) More...
struct	mfem::ArgMaxReducer< float, I >
struct	mfem::ArgMaxReducer< double, I >
struct	mfem::ArgMinMaxReducer< T, I >
struct	mfem::ArgMinMaxReducer< float, I >
struct	mfem::ArgMinMaxReducer< double, I >

Namespaces
namespace	mfem

Functions
template<class T , class B , class R >
void	mfem::reduce (int N, T &res, B &&body, const R &reducer, bool use_dev, Array< T > &workspace)
	Performs a 1D reduction on the range [0,N). res initial value and where the result will be written. body reduction function body. reducer helper for joining two reduced values. use_dev true to perform the reduction on the device, if possible. workspace temporary workspace used for device reductions. May be resized to a larger capacity as needed. Preferably should have MemoryType::MANAGED or MemoryType::HOST_PINNED. TODO: replace with internal temporary workspace vectors once that's added to the memory manager.