Print Email Facebook Twitter A matrix-multiply unit for posits in reconfigurable logic leveraging (Open)CAPI Title A matrix-multiply unit for posits in reconfigurable logic leveraging (Open)CAPI Author Chen, Jianyu (Student TU Delft) Al-Ars, Z. (TU Delft Computer Engineering) Hofstee, H.P. (TU Delft Computer Engineering; IBM Research) Date 2018 Abstract In this paper, we present the design in reconfigurable logic of a matrix multiplier for matrices of 32-bit posit numbers with es=2 [1]. Vector dot products are computed without intermediate rounding as suggested by the proposed posit standard to maximally retain precision. An initial implementation targets the CAPI 1.0 interface on the POWER8 processor and achieves about 10Gpops (Giga posit operations per second). Follow-on implementations targeting CAPI 2.0 and OpenCAPI 3.0 on POWER9 are expected to achieve up to 64Gpops. Our design is available under a permissive open source license at https://github.com/ChenJianyunp/Unum_matrix_multiplier. We hope the current work, which works on CAPI 1.0, along with future community contributions, will help enable a more extensive exploration of this proposed new format. Subject Dot-productMatrix-multiplierPosit numberOA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:bd3e00af-5b89-4543-9204-2c6c0f264928 DOI https://doi.org/10.1145/3190339.3190340 Publisher Association for Computing Machinery (ACM) ISBN 978-1-4503-6414-0 Source Proceedings of the Conference for Next Generation Arithmetic, CoNGA 2018 Event CoNGA 2018, 2018-03-28, Singapore, Singapore Part of collection Institutional Repository Document type conference paper Rights © 2018 Jianyu Chen, Z. Al-Ars, H.P. Hofstee Files PDF a1_chen.pdf 863.69 KB Close viewer /islandora/object/uuid:bd3e00af-5b89-4543-9204-2c6c0f264928/datastream/OBJ/view