gs_device_shmem::gs_device_shmem_buf_t Type Reference

Buffers for non-blocking communication and packing/unpacking. More...

Collaboration diagram for gs_device_shmem::gs_device_shmem_buf_t:

Public Member Functions
procedure, pass(this)	init (this, pe_order, dof_stack, mark_dupes, nslabs)
procedure, pass(this)	free (this)

Public Attributes
integer, dimension(:), allocatable	ndofs
	Number of dofs.
integer, dimension(:), allocatable	offset
	Offset into buf.
integer, dimension(:), allocatable	remote_offset
	Offset into buf for remote rank.
integer	total
	Total number of dofs.
integer	slab_stride
	Elements per parity slab of buf_d (the global max dof count); the stride of a buf_v_d parity slab is GS_VEC_NC times this. Send buffers hold two parity slabs, recv buffers one (see nslabs in init).
type(c_ptr)	buf_d = C_NULL_PTR
	Device buffer.
type(c_ptr)	buf_v_d = C_NULL_PTR
	Symmetric buffer, fused vector (x nc)
type(c_ptr)	dof_d = C_NULL_PTR
	Dof mapping for pack/unpack.

Detailed Description

Definition at line 52 of file gs_device_shmem.F90.

Member Function/Subroutine Documentation

free()

procedure, pass(this) gs_device_shmem::gs_device_shmem_buf_t::free

(

class(gs_device_shmem_buf_t), intent(inout)

this

)

Definition at line 66 of file gs_device_shmem.F90.

init()

procedure, pass(this) gs_device_shmem::gs_device_shmem_buf_t::init	(	class(gs_device_shmem_buf_t), intent(inout)	this,
		integer, dimension(:), intent(inout), allocatable	pe_order,
		type(stack_i4_t), dimension(:), intent(inout), allocatable	dof_stack,
		logical, intent(in)	mark_dupes,
		integer, intent(in)	nslabs
	)

Parameters

nslabs

number of parity slabs (2 for send buffers, which are round-parity double-buffered so a slab is never repacked while a previous non-blocking put may still be draining it; 1 for recv buffers, whose overwrite is gated by the ready signal).

Definition at line 65 of file gs_device_shmem.F90.

Member Data Documentation

buf_d

type(c_ptr) gs_device_shmem::gs_device_shmem_buf_t::buf_d = C_NULL_PTR

Definition at line 61 of file gs_device_shmem.F90.

buf_v_d

type(c_ptr) gs_device_shmem::gs_device_shmem_buf_t::buf_v_d = C_NULL_PTR

Definition at line 62 of file gs_device_shmem.F90.

dof_d

type(c_ptr) gs_device_shmem::gs_device_shmem_buf_t::dof_d = C_NULL_PTR

Definition at line 63 of file gs_device_shmem.F90.

ndofs

integer, dimension(:), allocatable gs_device_shmem::gs_device_shmem_buf_t::ndofs

Definition at line 53 of file gs_device_shmem.F90.

offset

integer, dimension(:), allocatable gs_device_shmem::gs_device_shmem_buf_t::offset

Definition at line 54 of file gs_device_shmem.F90.

remote_offset

integer, dimension(:), allocatable gs_device_shmem::gs_device_shmem_buf_t::remote_offset

Definition at line 55 of file gs_device_shmem.F90.

slab_stride

integer gs_device_shmem::gs_device_shmem_buf_t::slab_stride

Definition at line 60 of file gs_device_shmem.F90.

total

integer gs_device_shmem::gs_device_shmem_buf_t::total

Definition at line 56 of file gs_device_shmem.F90.

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

• /home/runner/work/neko/neko/src/gs/bcknd/device/gs_device_shmem.F90