gs_cpu Module Reference

Generic Gather-scatter backend for CPUs. More...

Data Types
type	gs_cpu_t
	Gather-scatter backend for CPUs. More...

Functions/Subroutines
subroutine	gs_cpu_init (this, nlocal, nshared, nlcl_blks, nshrd_blks)
	Dummy backend initialisation. More...
subroutine	gs_cpu_free (this)
	Dummy backend deallocation. More...
subroutine	gs_gather_cpu (this, v, m, o, dg, u, n, gd, nb, b, op, shrd)
	Gather kernel. More...
subroutine	gs_gather_kernel_add (v, m, o, dg, u, n, gd, nb, b)
	Gather kernel for addition of data \( v(dg(i)) = v(dg(i)) + u(gd(i)) \). More...
subroutine	gs_gather_kernel_mul (v, m, o, dg, u, n, gd, nb, b)
	Gather kernel for multiplication of data \( v(dg(i)) = v(dg(i)) \cdot u(gd(i)) \). More...
subroutine	gs_gather_kernel_min (v, m, o, dg, u, n, gd, nb, b)
	Gather kernel for minimum of data \( v(dg(i)) = \min(v(dg(i)), u(gd(i))) \). More...
subroutine	gs_gather_kernel_max (v, m, o, dg, u, n, gd, nb, b)
	Gather kernel for maximum of data \( v(dg(i)) = \max(v(dg(i)), u(gd(i))) \). More...
subroutine	gs_scatter_cpu (this, v, m, dg, u, n, gd, nb, b, shrd, event)
	Scatter kernel. More...
subroutine	gs_scatter_kernel (v, m, dg, u, n, gd, nb, b)
	Scatter kernel \( u(gd(i) = v(dg(i)) \). More...

Detailed Description

Generic Gather-scatter backend for CPUs.

Function/Subroutine Documentation

gs_cpu_free()

subroutine gs_cpu::gs_cpu_free ( class(gs_cpu_t), intent(inout)  this )

private

Dummy backend deallocation.

Definition at line 63 of file gs_cpu.f90.

gs_cpu_init()

subroutine gs_cpu::gs_cpu_init	(	class(gs_cpu_t), intent(inout)	this,
		integer, intent(in)	nlocal,
		integer, intent(in)	nshared,
		integer, intent(in)	nlcl_blks,
		integer, intent(in)	nshrd_blks
	)

Dummy backend initialisation.

Definition at line 54 of file gs_cpu.f90.

gs_gather_cpu()

subroutine gs_cpu::gs_gather_cpu ( class(gs_cpu_t), intent(inout)  this, real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, intent(in)  o, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b, integer, intent(in)  op, logical, intent(in)  shrd  )

private

Gather kernel.

Definition at line 68 of file gs_cpu.f90.

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gs_gather_kernel_add()

subroutine gs_cpu::gs_gather_kernel_add ( real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, intent(in)  o, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b  )

private

Gather kernel for addition of data \( v(dg(i)) = v(dg(i)) + u(gd(i)) \).

Definition at line 97 of file gs_cpu.f90.

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gs_gather_kernel_max()

subroutine gs_cpu::gs_gather_kernel_max ( real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, intent(in)  o, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b  )

private

Gather kernel for maximum of data \( v(dg(i)) = \max(v(dg(i)), u(gd(i))) \).

Definition at line 214 of file gs_cpu.f90.

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gs_gather_kernel_min()

subroutine gs_cpu::gs_gather_kernel_min ( real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, intent(in)  o, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b  )

private

Gather kernel for minimum of data \( v(dg(i)) = \min(v(dg(i)), u(gd(i))) \).

Definition at line 175 of file gs_cpu.f90.

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gs_gather_kernel_mul()

subroutine gs_cpu::gs_gather_kernel_mul ( real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, intent(in)  o, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b  )

private

Gather kernel for multiplication of data \( v(dg(i)) = v(dg(i)) \cdot u(gd(i)) \).

Definition at line 136 of file gs_cpu.f90.

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gs_scatter_cpu()

subroutine gs_cpu::gs_scatter_cpu ( class(gs_cpu_t), intent(inout)  this, real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b, logical, intent(in)  shrd, type(c_ptr)  event  )

private

Scatter kernel.

Todo:

Make the kernel abstract

Definition at line 252 of file gs_cpu.f90.

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gs_scatter_kernel()

subroutine gs_cpu::gs_scatter_kernel ( real(kind=rp), dimension(m), intent(inout)  v, integer, intent(in)  m, integer, dimension(m), intent(inout)  dg, real(kind=rp), dimension(n), intent(inout)  u, integer, intent(in)  n, integer, dimension(m), intent(inout)  gd, integer, intent(in)  nb, integer, dimension(nb), intent(inout)  b  )

private

Scatter kernel \( u(gd(i) = v(dg(i)) \).

Definition at line 270 of file gs_cpu.f90.

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