Added Fujitsu Monaka CPU target to GCC 15 compiler

Fujitsu has integrated support for its next-generation Armv9 processor “Monaka” into the GNU Compiler Collection codebase in time for the release of GCC 15 early next year.

The Fujitsu Monaka is the next generation Arm-based processor for HPC computing and AI. Slides released by Fujitsu have shown that this 2027 timed CPU offers 144 cores x 2 sockets, leverages Armv9-A architecture, 12-channel DDR memory, PCI Express 6.0 and CXL 3.0 connectivity, and ultra-low Voltage will be with air cooling support.

These slides on Fujitsu.com for those interested in more details about the Monaka CPU.

Fujitsu Monaka is expected to power next-generation supercomputers in a few years. Aside from the GCC patch being uploaded today, there was a press release between Fujitsu and AMD last week that they will be working on “open source AI initiatives,” including AMD Instinct accelerator support for FUJITSU-MONAKA.

This patch from Fujitsu to add was uploaded to GCC Git today -mcpu=fujitsu-monaka CPU target. The cost model has not yet been adjusted compared to the Fujitsu A64FX, but will be updated in the future. The GCC patch confirms that the FUJITSU MONAKA CPU uses Armv9.3-A with extensions F16, FP8, LS64, RNG, CRYPTO, SVE2_AES, SVE2_BITPERM, SVE2_SHA3 and SVE2_SM4.

The open source compiler GCC 15 should be available as stable next March-April in the form of GCC 15.1, well ahead of the expected availability of FUJITSU MONAKA servers in 2027.