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<sf-slack2> <acomodi> @hackerfoo: I have a question on brams: what should be the behavior of the xc7 bram tests on HW?
<sf-slack2> <acomodi> Meaning, what should I see to be sure they are correctly working?
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<tpb> Title: hackerfoo-go-functions/symbiflow at master · HackerFoo/hackerfoo-go-functions · GitHub (at github.com)
<sf-slack2> <acomodi> @hackerfoo: Great, thanks
<hackerfoo> If you want, you can install my symbiflow scripts and use "go bram_test 36 run": https://github.com/HackerFoo/hackerfoo-go-functions
<tpb> Title: GitHub - HackerFoo/hackerfoo-go-functions: HackerFoos go functions (at github.com)
<sf-slack2> <acomodi> Yeah, I think that is the best way, and those scripts are very handy actually
<hackerfoo> I hope others create their own script repos that can be linked in to .go.sh, then the answer to "how do I do this?" can be "run `go something`" instead of sending scripts around.
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<sf-slack2> <butta> Using the conda version of VPR and yosys we are getting this error on some of our test cases:
<sf-slack2> <butta> /scratch/safe/SymbiFlow/vtr-symbiflow/vpr/src/base/netlist.tpp:726 create_pin: Assertion 'pin_net(pin_id) == net_id' failed.
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<tpb> Title: Synthesis of asymmetric block RAMs · Issue #1134 · YosysHQ/yosys · GitHub (at github.com)
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<mithro> Pushed new database
<litghost> Thanks
<mithro> tmichalak: Is CLK_HROW_TOP_R.CLK_HROW_CK_IN_R0_ACTIVE suppose to be missing on Kintex 7
<mithro> tmichalak: IE Is there a fuzzer for kintex7/segbits_clk_hrow_top_r.db which is still disabled?
<mithro> kintex7/segbits_clk_hrow_top_r.db | 926 -----------------------------------------------------------------------------------------------------------------------------
<mithro> 926 lines removed from that file...
<tpb> Title: Investigate missing CLK_HROW PIPs bits for Kintex and Zynq · Issue #914 · SymbiFlow/prjxray · GitHub (at github.com)
<mithro> Okay, I just pushed updated kintex+zynq DBs too
<mithro> Will probably push another update this afternoon
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<mithro> acomodi: I think it makes sense to add Kokoro to run the VtR tests on the SymbiFlow repo
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<markus84> If I am interested in helping out where would I get started? My skillset is mostly C++, Verilog and compiler stuff in general.
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<hackerfoo> markus84: Are therre any issues in this list you might be interested in? https://github.com/issues?q=is%3Aopen+is%3Aissue+user%3ASymbiflow+label%3A%22good+first+issue%22
<tpb> Title: hackerfoo-go-functions/symbiflow at master · HackerFoo/hackerfoo-go-functions · GitHub (at github.com)
<hackerfoo> `go sf_build something`, and then if it fails you can use `go error_command` to show the failed command, or `go retry_error_command` to run just that command again.
<markus58> hackerfoo: Thanks I will have a look. Nice to see that there is a 'good first issue' label.
<markus58> hackerfoo: So the title of https://github.com/SymbiFlow/yosys/issues/32 looks quite interesting but there isn't much description of what currently works and what does not.
<tpb> Title: Add 8/16/32 bit widths for block RAM inference · Issue #32 · SymbiFlow/yosys · GitHub (at github.com)
<sf-slack2> <tmichalak> @mithro: no, there is no reason for CLK_HROW_TOP_R.CLK_HROW_CK_IN_R0_ACTIVE going missing for kintex. Actually there are more bits missing, this is why I opened a ticket today (https://github.com/SymbiFlow/prjxray/issues/914) to investigate the root cause
<tpb> Title: Investigate missing CLK_HROW PIPs bits for Kintex and Zynq · Issue #914 · SymbiFlow/prjxray · GitHub (at github.com)
<hackerfoo> markus58: I started on it, but it turned out to be a bit more work that I thought: https://github.com/SymbiFlow/yosys/compare/master+wip...HackerFoo:infer_ramb36e1
<tpb> Title: Comparing SymbiFlow:master+wip...HackerFoo:infer_ramb36e1 · SymbiFlow/yosys · GitHub (at github.com)
<sf-slack2> <tmichalak> @mithro: there is no other fuzzer calculating those bits that is currently disabled, so I am kind of surprised that everything is there for Artix, but gone for Kintex or Zynq. I am pretty sure there is a small bug in the maketodo script
<hackerfoo> markus58: Because brams_map.v will also need updated to map DI and DO correctly (no DIP/DOP for 8/16/32 bits): https://github.com/SymbiFlow/yosys/blob/master%2Bwip/techlibs/xilinx/brams_map.v#L164-L165
<tpb> Title: yosys/brams_map.v at master+wip · SymbiFlow/yosys · GitHub (at github.com)
<sf-slack2> <tmichalak> @markus58: You may also check out the list of tasks tagged with 'help wanted' : https://github.com/issues?page=1&q=is%3Aopen+is%3Aissue+user%3ASymbiflow+label%3A%22help+wanted%22&utf8=%E2%9C%93
<hackerfoo> I'm happy to answer questions, I recently worked on this. Here's the relevant test: https://github.com/SymbiFlow/symbiflow-arch-defs/blob/master/xc7/tests/bram_test/bram_test_36.v
<tpb> Title: symbiflow-arch-defs/bram_test_36.v at master · SymbiFlow/symbiflow-arch-defs · GitHub (at github.com)
<hackerfoo> markus58: If you want to use my scripts, `go bram_test 36 run` should build and run the test: https://github.com/HackerFoo/hackerfoo-go-functions/blob/master/functions/symbiflow#L216-L236
<tpb> Title: hackerfoo-go-functions/symbiflow at master · HackerFoo/hackerfoo-go-functions · GitHub (at github.com)
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<tpb> Title: GitHub - HackerFoo/hackerfoo-go-functions: HackerFoos go functions (at github.com)
<markus58> hackerfoo: If you summarize a bit in the ticket I could give it a try. Right now I am not at all familiar with the code base but hopefully that would change.
<markus58> sf-slack2: Thanks I will browse that list too!
<duck2> so, `--allow_dangling_combinational_nodes on` and `--disable_errors check_unbuffered_edges:check_route` tames xc7 warnings. nice new options!
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<hackerfoo> markus58: I've updated https://github.com/SymbiFlow/yosys/issues/32
<tpb> Title: Add 8/16/32 bit widths for block RAM inference · Issue #32 · SymbiFlow/yosys · GitHub (at github.com)
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<tpb> Title: hackerfoo-go-functions/symbiflow at master · HackerFoo/hackerfoo-go-functions · GitHub (at github.com)
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<mithro> duck2: Still trying to process your `<xs:all>` comments....
<duck2> mithro: i could only process them in a boring waiting room :P anywhere too cryptic?
<mithro> duck2: Just trying to do too many things at once :-)
<mithro> litghost: Do you know if https://github.com/SymbiFlow/prjxray/issues/917 is expected?
<tpb> Title: Should some pips bounce from 050-pip-seed and 056-pip-rem? · Issue #917 · SymbiFlow/prjxray · GitHub (at github.com)
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<litghost> mithro: Bouncing between 050/056 is probably okay, as 050 is semi-random
<litghost> mithro: 044/046 should probably be more stable