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Notes from the lab: Updates on HDXPRT 4, MobileXPRT 3, and AIXPRT

The next couple of months will be very busy with XPRT activity, so we want to update readers on what to expect. Depending on a number of factors, we expect to release HDXPRT 4 and MobileXPRT 3 community previews (CPs) within the next four to six weeks. We’re also hoping to publish an early AIXPRT request-for-comment (RFC) build on GitHub within the same time frame. Here’s a little more detail about each of these developments.

HDXPRT 4: We originally planned to release the HDXPRT 4 CP several weeks ago. As we recently discussed in the blog, a lot has changed in the Windows 10 development world within a short period of time, and Microsoft has released a number of new Redstone 5/October 2018 Update builds in quick succession. While our HDXPRT 4 CP candidate testing went well overall, we observed some inconsistent workload scores when testing on some of the new Windows builds. Since then, we believe we’ve narrowed down the list of possible causes to a few specific graphics driver versions, but we’re still testing to make sure there are no other immediate issues. As soon as we’re confident in that assessment, we’ll release the CP along with any relevant information about the affected graphics drivers.

MobileXPRT 3: MobileXPRT 3 development is progressing nicely, and we’re close to completing a CP candidate build. We’ll test that build extensively on our library of Android phones and tablets, and barring any unforeseen issues, we plan to release the CP in the next few weeks.

AIXPRT: AIXPRT is the umbrella name for a set of tools we’re developing to help evaluate machine learning performance. After a great deal of research, we’re getting closer to releasing a build – tentatively called the AIXPRT RFC – for community members and other interested parties to download and review. For a number of reasons, the AIXPRT RFC process will be a little different than our normal XPRT RFC and CP process. We’ll be offering more information on the AIXPRT RFC build over the next several weeks.

We’re grateful to everyone who’s contributed in any way to each of these projects, and we look forward to sharing the benchmarks with the world. If you have any questions about the XPRTs, please don’t hesitate to ask!


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