Transparent Data Access for Scientific Workflows Across Clouds.

We present a scientific workflow data management solution that combines global data access with a block-level optimization of data transfer, wherein only the data blocks that are used by a remote job are transferred over the network, significantly reducing data movement for specific common data access patterns. We propose the implementation of the solution based on the HyperFlow workflow management system and the Onedata data management platform. Preliminary results confirm the advantages of the proposed solution.