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| litghost | skydive: I'm tracking an OOM failure that occurs on arty100T with some placement seeds. We have been seeing it on CI with some frequency. I believe I know how to fix the issue, and will be working on it this week. | 15:24 |
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| skydive | Thanks a lot for the update! | 15:28 |
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| litghost | skydive: So as a workaround, you can provide another seed to the placement step, and it "typically" works. To pass a seed to placement set env var VPR_SEED="--seed <int>" before invoking the flow | 15:30 |
| litghost | skydive: Not ideal, but might give you a chance to make progress while we work on a fix | 15:31 |
| litghost | skydive: It is worth noting that I expect the arty100T flow right now to use ~2-6 GB. It is worth noting that not all of that is resident at the same time, but it does imply a minimum RAM requirement for the moment | 15:36 |
| skydive | litghost: thanks for the heads up regarding RAM. I should be fine, I have about 7GB free. | 15:37 |
| skydive | Setting that environment variable seems to break the symbiflow_pack command. "vpr architecture circuit" is telling me --seed is an unexpected argument. | 15:38 |
| litghost | skydive: Huh, let me check, I might have provide a bad argument then | 15:38 |
| skydive | Whoops - i accidently had an equals in there. | 15:38 |
| litghost | skydive: Ya, that'll do it | 15:39 |
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| sf-slack | <ryancj14> @mithro: I've studied fpga-tool-perf extensively now and I was wondering if it might be nice to have a wiki for fpga-tool-perf. I've compiled some of the notes I've taken on the repo into an example wiki in ryancj14/fpga-tool-perf: https://github.com/ryancj14/fpga-tool-perf/wiki Do you think something like this would be a good addition to the repo? | 16:32 |
| tpb | Title: Home · ryancj14/fpga-tool-perf Wiki · GitHub (at github.com) | 16:32 |
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| mithro | ryancj14: Yes | 16:35 |
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| -_whitenotifier-b- [fpga-tool-perf] ryancj14 opened issue #189: Adding wiki to fpga-tool-perf - https://git.io/JJ0Ah | 16:43 | |
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| skydive | litghost: Even after exporting the seed, it still doesn't seem to work reliably. Same problem. Do you have an example seed that functions properly? | 16:49 |
| skydive | I'll be patient - thanks for working on this! | 16:49 |
| litghost | skydive: Huh, can you file an issue and attach the failing log file? | 16:50 |
| skydive | Will do so tonight. What's the optimal way to get a log output? (Command) > file.log 2>&1 | 16:51 |
| litghost | skydive: Logs should be in files with extension *.log, so simply tar them all | 16:57 |
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| sf-slack | <johnnybui> Is there any specific reason that the icebreaker board is reporting frequency as 81.05 while all the other boards/toolchains have frequencies in the millions (246366100). I assume it's some issue with inconsistency with units (hertz vs megahertz). Here's an example: https://gist.github.com/TypingKoala/80a1144e30eb3d678f30f8f063baea63 | 18:27 |
| tpb | Title: arty.json · GitHub (at gist.github.com) | 18:27 |
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| litghost | johnnybui: Seems like a bug? Please file an issue with the relevant info so it can be cleaned up, both in the code and in the documentation | 19:50 |
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| -_whitenotifier-b- [fpga-tool-perf] TypingKoala opened issue #190: Inconsistent units for icebreaker board max frequency - https://git.io/JJEJK | 20:06 | |
| -_whitenotifier-b- [FPGA-Tool-Performance-Visualization-Library] TypingKoala opened issue #11: Implement enums for AddNormalizedColumn direction parameter - https://git.io/JJETW | 21:07 | |
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| mithro | hzeller: https://github.com/SymbiFlow/symbiflow-xc7z-automatic-tester | 21:59 |
| tpb | Title: GitHub - SymbiFlow/symbiflow-xc7z-automatic-tester: Tool for automatically testing FPGA designs using a Zynq Series 7 board. (at github.com) | 21:59 |
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| -_whitenotifier-b- [symbiflow-examples] Skydive opened issue #37: Arty A7 100T genfasm crash (in counter_test) - https://git.io/JJELP | 22:19 | |
| skydive | Oh - I was going to notify here. - cool! Bot is automatic | 22:20 |
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| skydive | Sorry - I'm on the move for a week. Hard to be timely. | 22:21 |
| litghost | skydive: No problem. Your issue is different than the one I'm investigating, but I'll take a look | 22:33 |
| skydive | Hmm - i couldn't reproduce my earlier logs... | 22:34 |
| skydive | It seems to break in the same section of the Makefile | 22:34 |
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