spark git commit: [SPARK-16469] enhanced simulate multiply

Repository: spark Updated Branches: refs/heads/branch-2.0 5a71a0501 -> 7d9bd951b [SPARK-16469] enhanced simulate multiply ## What changes were proposed in this pull request? We have a use case of multiplying very big sparse matrices. we have about 1000x1000 distributed block matrices

spark git commit: [SPARK-16469] enhanced simulate multiply

Repository: spark Updated Branches: refs/heads/master 51ade51a9 -> ea06e4ef3 [SPARK-16469] enhanced simulate multiply ## What changes were proposed in this pull request? We have a use case of multiplying very big sparse matrices. we have about 1000x1000 distributed block matrices