US Patent 9146902 Parallel computation of matrix problems

In order to perform computation concerning a large sparse matrix of values, a computer stores in its memory the nonzero values of each row and as many null or preferably zero values as are required to make up a predetermined number of stored values for each row. Associated column indices are also stored. Storage in this format can be carried out by massively parallel processing using a graphics processing unit. The format is acceptable input for programs written to expect input in conventional compressed sparse row format yet avoids the constraints which enforce serial processing in order to store in that conventional format.