fms_affinity_mod

Fortran API interfaces to set the thread affinity. API interfaces to allow setting and getting thread affinity. The routines get_cpuset , set_cpu_affinity , and fms_affinity_get are defined via C routines in affinity.c. More...

Data Types
interface	get_cpuset
	Private interface to retrieve this groups CPU set and it's size. More...
interface	set_cpu_affinity
	Private interface to set CPU afinity to a given core. More...

Functions/Subroutines
subroutine, public	fms_affinity_init ()
	Initialization routine for affinity handling.
subroutine, public	fms_affinity_set (component, use_hyper_thread, nthreads)
	Routine to set affinity for a component.
integer(kind=c_int) function	get_cpuset (fsz, output, pe, debug)
integer(kind=c_int) function	set_cpu_affinity (cpu)

Variables
logical	affinity = .true.
logical	debug_affinity = .false.
logical(c_bool)	debug_cpuset = .false.
logical	module_is_initialized = .FALSE.
logical	strict = .true.

Detailed Description

Fortran API interfaces to set the thread affinity. API interfaces to allow setting and getting thread affinity. The routines get_cpuset , set_cpu_affinity , and fms_affinity_get are defined via C routines in affinity.c.

Author

Rusty Benson

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Data Type Documentation

fms_affinity_mod::get_cpuset

interface fms_affinity_mod::get_cpuset

Private interface to retrieve this groups CPU set and it's size.

Defined in affinity.c.

Definition at line 56 of file fms_affinity.F90.

Public Member Functions
integer(kind=c_int) function	get_cpuset (fsz, output, pe, debug)

fms_affinity_mod::set_cpu_affinity

interface fms_affinity_mod::set_cpu_affinity

Private interface to set CPU afinity to a given core.

Defined in affinity.c.

Definition at line 66 of file fms_affinity.F90.

Public Member Functions
integer(kind=c_int) function	set_cpu_affinity (cpu)

Function/Subroutine Documentation

fms_affinity_get()

integer(kind=c_int) function fms_affinity_get

Definition at line 49 of file fms_affinity.F90.

fms_affinity_init()

subroutine, public fms_affinity_init

Initialization routine for affinity handling.

Definition at line 90 of file fms_affinity.F90.

fms_affinity_set()

subroutine, public fms_affinity_set	(	character(len=*), intent(in)	component,
		logical, intent(in)	use_hyper_thread,
		integer, intent(in)	nthreads
	)

Routine to set affinity for a component.

Parameters

[in]	component	Component name
[in]	use_hyper_thread	.TRUE. if using hyperthreads
[in]	nthreads	Number of threads

Definition at line 117 of file fms_affinity.F90.

get_cpuset()

integer(kind=c_int) function get_cpuset	(	integer(kind=c_int), intent(in), value	fsz,
		integer(kind=c_int), dimension(*), intent(inout)	output,
		integer(kind=c_int), intent(in), value	pe,
		logical(kind=c_bool), value	debug
	)

Definition at line 56 of file fms_affinity.F90.

set_cpu_affinity()

integer(kind=c_int) function set_cpu_affinity

(

integer(kind=c_int), intent(in), value

cpu

)

Definition at line 66 of file fms_affinity.F90.

Variable Documentation

affinity

logical affinity = .true.

private

Definition at line 73 of file fms_affinity.F90.

debug_affinity

logical debug_affinity = .false.

private

Definition at line 75 of file fms_affinity.F90.

debug_cpuset

logical(c_bool) debug_cpuset = .false.

private

Definition at line 76 of file fms_affinity.F90.

module_is_initialized

logical module_is_initialized = .FALSE.

private

Definition at line 85 of file fms_affinity.F90.

strict

logical strict = .true.

private

Definition at line 74 of file fms_affinity.F90.