fepetra_comm::ScanSum Interface Reference

Epetra_Comm Scan Sum function. More...

Public Member Functions
Parallel Prefix Methods
subroutine	scansum (this, MyVals, scan_sums, err)
subroutine	scansum (this, MyVals, scan_sums, err)

Detailed Description

Epetra_Comm Scan Sum function.

Take list of input values from all processors in the communicator, computes the scan sum and returns it to all processors such that processor i contains the sum of values from processor 0 up to and including processor i. Implemented in Epetra_MpiComm, and Epetra_SerialComm.

Member Function/Subroutine Documentation

subroutine fepetra_comm::ScanSum::scansum	(	class(epetra_comm), intent(in)	this,
		real(c_double), dimension(:), intent(in)	MyVals,
		real(c_double), dimension(:), intent(inout)	scan_sums,
		type(error), intent(inout), optional	err
	)

Parameters

[in]	this	Polymorphic type Epetra_Comm communicator containing processors information
[in]	myvals	In On entry, contains the list of values to be summed across all processors.
[in,out]	scan_sums	Out On exit, contains the list of values summed across processors 0 through i.
[in,out]	err	Returns error information.

subroutine fepetra_comm::ScanSum::scansum	(	class(epetra_comm), intent(in)	this,
		integer(c_int), dimension(:), intent(in)	MyVals,
		integer(c_int), dimension(:), intent(inout)	scan_sums,
		type(error), intent(inout), optional	err
	)

Parameters

[in]	this	Polymorphic type Epetra_Comm communicator containing processors information
[in]	myvals	In On entry, contains the list of values to be summed across all processors.
[in,out]	scan_sums	Out On exit, contains the list of values summed across processors 0 through i.
[in,out]	err	Returns error information.

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The documentation for this interface was generated from the following file:

• http://trilinos.org/docs/dev/packages/ForTrilinos/src/doc/epetra/FEpetra_Comm.f90