| commit | 1d2899fb63a854736e8da26b4a239edbf8aab06f | [log] [tgz] |
|---|---|---|
| author | Srikrishna Iyer <sriyer@google.com> | Thu Feb 11 18:23:15 2021 -0800 |
| committer | Srikrishna Iyer <46467186+sriyerg@users.noreply.github.com> | Tue Mar 16 02:54:06 2021 -0700 |
| tree | 24ced0849dfe56b642e204191837dd5531291546 | |
| parent | 7c480565be4e1cfbc29f045e4ae221be12da1738 [diff] |
[dvsim] Do weighted scheduling of jobs This patch adds rough weights to each target (build, run, cov etc). If the slots are fully utilized and just one becomes available, the weighted scheduling will prefer the earlier targets than the latter. If multiple tests pass and more slots are available, then it distrubutes the available slots to each remaining target by their assigned weights. The weights are set such that builds have the highest preference, followed by coverage tasks followed by runs. The reason for doing so is as follows: Lets say that all build are complete and only the simulation and coverage jobs are queued up. If all tests of AES are complete, then its coverage tasks will end up starving until ALL tests in ALL other blocks are complete. With weighted allocation of dispatch slots, AES coverage tasks will complete sooner, providing us an early preview of the results, rather than having to wait 3+ hours for the rest of the simulation to finish. Weights are currently set based on relative importance. We can always adjust them as needed. Signed-off-by: Srikrishna Iyer <sriyer@google.com>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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