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WarmPie: A bare-bones implementation of message passing interface for embedded many-cores

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publication2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)
Number of pages4
ISBN (Print)978-1-4799-8229-5
Publication statusPublished - 2015
Publication typeA4 Article in a conference publication
EventConference on Ph. D. Research in Microelectronics and Electronics -
Duration: 1 Jan 1900 → …


ConferenceConference on Ph. D. Research in Microelectronics and Electronics
Period1/01/00 → …


In this paper we present a message-passing based interface, WarmPie, to simplify data communication and management on a Multi-Processor System-on-Chip (MPSoC). WarmPie defines a subset of Message Passing Interface (MPI) library routines. We provide C language implementation of those routines on a 9-core MPSoC. WarmPie offers an abstract view of the MPSoC to facilitate effortless integration of software to hardware. In one use case study of developing a ring communication program on the MPSoC, software development effort is reduced by a factor of 3.75 due to using WarmPie. The application using WarmPie is fully compatible with a reference MPI environment on Linux. WarmPie has a small memory footprint of 7.3KB per core. Although data transmission latency has increased due to using the interface, the overhead is amortized when transferring a bigger payload in one message.

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