An organic material can be used in a modified strain gauge for IR transduction, resulting in an organic IR sensor. The disclosed methods and apparatus support a virtual machine that is associated with the same ISA as the executing platform, while the ISA of the native library or application is of a different ISA. The method comprises receiving data to be written for a plurality of collective processes within a collective parallel processing environment, extracting a data pattern for the data to be written for the plurality of collective processes, generating a representation describing the data pattern, and saving the data and the representation.