Abstract: Rapid determination of placement for code and data for optimal access of the code and data during execution of software applications. An application that is to be efficiently arranged in a software carrier medium is instrumented such that the status of whether a particular unit of code or data has been accessed during a time interval is recorded in a time-ordered bit sequence for each such unit. A sort routine is used to sort the order of time-ordered bit sequences within an array of such sequences. The sort routine invokes a comparison function that operates upon the temporal information stored in the two time-ordered bit sequences that are being compared for the routine. The order of the code and data in the software application is reordered in accordance with the results of the sort routine.

Abstract: Each component binary in a heterogeneous program is translated from a platform-specific instruction set into a set of intermediate representation (IR) instructions that are platform-neutral. The IR instructions are grouped into IR code blocks, the IR code blocks into IR procedures, and the IR procedures into IR components to create an intermediate representation hierarchy for the program. An application program interface is provided that permits user access to the IR hierarchy for instrumentation, optimization, navigation, and manipulation of the IR hierarchy. The transformed IR hierarchy is then translated into platform-specific instructions and output as a modified binary. The user can designate a different platform for the output translation of a code block than the platform for which the code block was originally written. Prologue and epilog code is added to contiguous blocks that are translated into different architectures.

Abstract: The present invention is directed to a method and apparatus that provides rapid determination of placement for code and data for optimal access of the code and data during execution of software applications. An application that is to be efficiently arranged in a software carrier medium is instrumented such that the status of whether a particular unit of code or data has been accessed during a time interval is recorded in a time-ordered bit sequence for each such unit. A sort routine is used to sort the order of time-ordered bit sequences within an array of such sequences. The sort routine invokes a comparison function that operates upon the temporal information stored in the two time-ordered bit sequences that are being compared for the routine. The order of the code and data in the software application is reordered in accordance with the results of the sort routine.