gs_comm::gs_comm_t Type Reference

Gather-scatter communication method. More...

Inheritance diagram for gs_comm::gs_comm_t:

Collaboration diagram for gs_comm::gs_comm_t:

Public Member Functions
procedure(gs_comm_init), deferred, pass	init gs_comm_init
procedure(gs_comm_free), deferred, pass	free gs_comm_free
procedure(gs_nbsend), deferred, pass	nbsend gs_nbsend
procedure(gs_nbrecv), deferred, pass	nbrecv gs_nbrecv
procedure(gs_nbwait), deferred, pass	nbwait gs_nbwait
procedure, pass(this)	init_dofs (this)
procedure, pass(this)	free_dofs (this)
procedure, pass(this)	init_order (this, send_pe, recv_pe)
	Obtains which ranks to send and receive data from.
procedure, pass(this)	free_order (this)
procedure, pass(this)	nbsend_vec (this, u, n, nc, tag, deps, strm)
	Fused vector halo exchange. Default implementations abort; backends that set vec_supported = .true. override them.
procedure, pass(this)	nbrecv_vec (this, tag, nc)
	Default fused vector receive. Abort unless a backend overrides it.
procedure, pass(this)	nbwait_vec (this, u, n, nc, op, strm)
	Default fused vector wait/reduce. Abort unless a backend overrides it.

Public Attributes
type(stack_i4_t), dimension(:), allocatable	send_dof
	A list of stacks of dof indices local to this process to send to rank_i.
type(stack_i4_t), dimension(:), allocatable	recv_dof
	recv_dof(rank_i) is a stack of dof indices local to this process to receive from rank_i. size(recv_dof) == pe_size
integer, dimension(:), allocatable	send_pe
	Array of ranks that this process should send to.
integer, dimension(:), allocatable	recv_pe
	array of ranks that this process will receive messages from
logical	vec_supported = .false.
	Whether this backend implements the fused vector (multi-component) halo exchange (nbsend_vec/nbrecv_vec/nbwait_vec). When .false., the gs_op_r3 caller falls back to nc independent scalar exchanges.

Detailed Description

Definition at line 52 of file gs_comm.f90.

Member Function/Subroutine Documentation

free()

procedure(gs_comm_free), deferred, pass gs_comm::gs_comm_t::free

pure virtual

Definition at line 70 of file gs_comm.f90.

free_dofs()

procedure, pass(this) gs_comm::gs_comm_t::free_dofs

(

class(gs_comm_t), intent(inout)

this

)

Definition at line 75 of file gs_comm.f90.

free_order()

procedure, pass(this) gs_comm::gs_comm_t::free_order

(

class(gs_comm_t), intent(inout)

this

)

Definition at line 77 of file gs_comm.f90.

init()

procedure(gs_comm_init), deferred, pass gs_comm::gs_comm_t::init

pure virtual

Definition at line 69 of file gs_comm.f90.

init_dofs()

procedure, pass(this) gs_comm::gs_comm_t::init_dofs

(

class(gs_comm_t), intent(inout)

this

)

Definition at line 74 of file gs_comm.f90.

init_order()

procedure, pass(this) gs_comm::gs_comm_t::init_order	(	class(gs_comm_t), intent(inout)	this,
		type(stack_i4_t), intent(inout)	send_pe,
		type(stack_i4_t), intent(inout)	recv_pe
	)

Parameters

send_pe,only	contains rank ids this porcesss should send to
recv_pe,only	the ranks this process should receive from

Definition at line 76 of file gs_comm.f90.

nbrecv()

procedure(gs_nbrecv), deferred, pass gs_comm::gs_comm_t::nbrecv

pure virtual

Definition at line 72 of file gs_comm.f90.

nbrecv_vec()

procedure, pass(this) gs_comm::gs_comm_t::nbrecv_vec	(	class(gs_comm_t), intent(inout)	this,
		integer, intent(in)	tag,
		integer, intent(in)	nc
	)

Definition at line 81 of file gs_comm.f90.

nbsend()

procedure(gs_nbsend), deferred, pass gs_comm::gs_comm_t::nbsend

pure virtual

Definition at line 71 of file gs_comm.f90.

nbsend_vec()

procedure, pass(this) gs_comm::gs_comm_t::nbsend_vec	(	class(gs_comm_t), intent(inout)	this,
		real(kind=rp), dimension(nc*n), intent(inout)	u,
		integer, intent(in)	n,
		integer, intent(in)	nc,
		integer, intent(in)	tag,
		type(c_ptr), intent(inout)	deps,
		type(c_ptr), intent(inout)	strm
	)

Parameters

u	compact shared buffer, component-outer: u((c-1)*n + idx)
n	number of shared dofs (per component)
nc	number of components

Definition at line 80 of file gs_comm.f90.

nbwait()

procedure(gs_nbwait), deferred, pass gs_comm::gs_comm_t::nbwait

pure virtual

Definition at line 73 of file gs_comm.f90.

nbwait_vec()

procedure, pass(this) gs_comm::gs_comm_t::nbwait_vec	(	class(gs_comm_t), intent(inout)	this,
		real(kind=rp), dimension(nc*n), intent(inout)	u,
		integer, intent(in)	n,
		integer, intent(in)	nc,
		integer	op,
		type(c_ptr), intent(inout)	strm
	)

Definition at line 82 of file gs_comm.f90.

Member Data Documentation

recv_dof

type(stack_i4_t), dimension(:), allocatable gs_comm::gs_comm_t::recv_dof

Definition at line 57 of file gs_comm.f90.

recv_pe

integer, dimension(:), allocatable gs_comm::gs_comm_t::recv_pe

Definition at line 63 of file gs_comm.f90.

send_dof

type(stack_i4_t), dimension(:), allocatable gs_comm::gs_comm_t::send_dof

Definition at line 54 of file gs_comm.f90.

send_pe

integer, dimension(:), allocatable gs_comm::gs_comm_t::send_pe

Note

: this will usually be fewer than the total number of ranks size(send_pe) <= pe_size

Definition at line 61 of file gs_comm.f90.

vec_supported

logical gs_comm::gs_comm_t::vec_supported = .false.

Definition at line 67 of file gs_comm.f90.

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

• /home/runner/work/neko/neko/src/gs/gs_comm.f90