dnami_mpi
This section gives an overview over the different MPI (Message Passing Interface) funtions of the dnami library.
The dnami MPI functions
The dnami mpi module provides functions for MPI communication.
- class src.src_py.dnami_mpi.type_mpi(tree)
The type_mpi object contains functions for swapping halo data among different MPI processes.
- Parameters:
tree – The dnami tree data structure
- swap(f, nh, tree)
Convenience function to swap all directions including the corners in a single call. A call to this function is equal to calling swapXc, swapYc and swapZc (in this order) separately.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapX(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the x-direction over all its “nv” variables with halo size “nh”. This function does not swap the corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapXc(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the x-direction over all its “nv” variables with halo size “nh”. This function will also swap corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapY(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the y-direction over all its “nv” variables with halo size “nh”. This function does not swap the corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapYc(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the y-direction over all its “nv” variables with halo size “nh”. This function will also swap corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapZ(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the z-direction over all its “nv” variables with halo size “nh”. This function does not swap the corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure
- swapZc(f, nh, tree)
Swaps array “f(X,0:nv)” (a function of position vector X e.g. X=(x,y,z)) in the z-direction over all its “nv” variables with halo size “nh”. This function will also swap corners.
- Parameters:
f – The input and output vector for the halo data swap
nh – The width of the halo data regions
tree – The dnami tree data structure