A specification of an operation to perform one or more element-wise sums of specified portions of a matrix is received. The specification of the operation is analyzed to select a type of processing load partitioning to be applied. Based on the selected type of processing load partitioning to be applied, processing required to perform the operation is partitioned across a plurality of physical processing elements in parallel. The partitioned processing is distributed to the physical hardware processing elements to perform in parallel the element-wise sums of the specified portions of the matrix.