Cgra accelerator for weather/climate dynamics simulation

A method for solving partial differential equations using a coarse-grained reconfigurable array accelerator for problems on a regular grid, said regular grid comprising grid cells being representative for a physical natural environment, wherein a list of physical values is associated with each grid cell, wherein a horizontal compute stencil kernel has operand access in an x-y plane, and wherein a vertical compute stencil kernel has operand access in a plane vertical to said x-y plane,

• wherein said configurable processing elements are connected in an accelerator-internal grid by an accelerator-internal interconnect system,
• wherein memory arrays comprising memory cells, said memory arrays being connected to said accelerator-internal interconnect system, said method comprising
• positioning selected ones of said memory arrays said accelerator such that they correspond to positions of said grid cells in said physical natural environment,
• storing said list of physical values of said corresponding grid cell of said physical natural environment in each group of said memory cells,
• determining horizontal stencil computation results and vertical stencil computation results alternatively, and
• solving said PDEs using a plurality of stencil computing kernels using said accelerator.

A computer program product for solving partial differential equations using a coarse-grained reconfigurable array accelerator for problems on a regular grid, said regular grid comprising grid cells being representative for a physical natural environment, wherein a list of physical values is associated with each grid cell, wherein a horizontal compute stencil kernel has operand access in an x-y plane, and wherein a vertical compute stencil kernel has operand access in a plane vertical to said x-y plane, wherein said configurable processing elements are connected to an accelerator-internal grid by an accelerator-internal interconnect system, and wherein memory arrays comprising memory cells, said memory arrays being connected to said accelerator-internal interconnect system,

• the computer program product comprising a computer readable storage medium having program instructions embodied therewith, said program instructions being executable by one or more computing systems or controllers to cause said one or more computing systems to
• position selected ones of said memory arrays said accelerator such that they correspond to positions of said grid cells in said physical natural environment,
• store said list of physical values of said corresponding grid cell of said physical natural environment in each group of said memory cells,
• determining horizontal stencil computation results and vertical stencil computation results alternatively, and
• solving said PDEs using a plurality of stencil computing kernels using said accelerator.