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#openlane
  • u

    20Mhz

    07/25/2020, 1:01 PM
    finally fixed my menus in klayout 🙂 ..apparently I had conflicting klayout builds
    🙌 1
    👍 1
  • u

    20Mhz

    07/25/2020, 2:56 PM
    I was able to WA the overlapp issue by tweaking the utilization, now is in detailed routing, however, it doesn’t seem to blow much steam, I think openroad was using multiple cores in this step, can it be enabled ? Currently using only 10% of CPU
    a
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  • m

    mehdi

    07/25/2020, 3:10 PM
    @User where do you see the overlap issue and in which technology
    u
    a
    t
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  • u

    20Mhz

    07/25/2020, 3:32 PM
    magic_drc.tcl seems to be expecting library LEF, but receives only TECH_LEF, should I be adding EXTRA_LEF variable to my design specific setup?
    Copy code
    Reading DEF data from file /Users/ronaldv/Projects/repositories/openlane/designs/copperv/runs/ver3//results/routing/copperv.def.
This action cannot be undone.
  Processed 6 vias total.
Cell sky130_fd_sc_hd__inv_8 couldn't be read
DEF read, Line 613 (Error): Cell sky130_fd_sc_hd__inv_8 is not defined.  Maybe you have not read the corresponding LEF file?
Cell sky130_fd_sc_hd__inv_8 couldn't be read
    a
    t
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  • t

    tnt

    07/25/2020, 6:27 PM
    build/tapcell/common/linux.mk:58: *** We need SWIG >= 4.0.0, please upgrade,swig is too old
    Oh damnit, that is one annoying dependency 😕
    a
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  • t

    tnt

    07/25/2020, 8:22 PM
    Ok, so I managed to build all the tools "natively" \o/ (no idea if they work yet ...)
    👍 2
  • t

    tnt

    07/25/2020, 8:22 PM
    If anyone is interested, here's the build script I ended up with : https://github.com/smunaut/openlane-baremetal/blob/master/openlane_build.sh
  • t

    tnt

    07/25/2020, 8:33 PM
    So if I set 
    export PDK_ROOT=/home/tnt/sky130/openlane_workspace/pdks/
    it's still looks for 
    /home/tnt/sky130/openlane_workspace/openlane/pdks//sky130A/libs.tech/openlane/config.tcl
    (notice there is a `/openlan/`` too much in that path)
    • 1
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  • t

    tnt

    07/25/2020, 8:52 PM
    Error: /home/tnt/sky130/openlane_workspace/openlane/designs/spm/runs/25-07_22-44/tmp/routing/addspacers.def
  • t

    tnt

    07/25/2020, 8:52 PM
    Something's going wrong somewhere.
  • t

    tnt

    07/25/2020, 8:53 PM
    @User Do you also get tons of "Notice 0: Warning: WARNING (LEFPARS-2036): SOURCE statement is obsolete in version 5.6 and later."
  • a

    Andy

    07/25/2020, 8:53 PM
    Yeah I'm seeing a bunch of those
  • a

    Andy

    07/25/2020, 8:53 PM
    as well
  • a

    Anish

    07/25/2020, 8:54 PM
  • a

    Andy

    07/25/2020, 8:54 PM
    Cool I didn't see that
  • a

    Andy

    07/25/2020, 8:54 PM
    It's only a minor annoyance, especially if it will be fixed soon
  • a

    Andy

    07/25/2020, 8:55 PM
    It makes scrolling back through the logs nearly impossible
  • t

    tnt

    07/25/2020, 8:55 PM
    I guess you need to rebuild open_pdk after doing that ?
  • a

    Andy

    07/25/2020, 8:56 PM
    Probably
  • t

    tnt

    07/25/2020, 9:01 PM
    So what's a bit confusing is that the README.md from https://github.com/efabless/openlane seems to want the 
    pdks/
    directory directly in the work dir, at the same level as 
    openlane/
    . But seems like most scripts want it inside 
    openlane/
    ...
  • a

    Anish

    07/25/2020, 9:02 PM
    @User the docker command they provide links the pdks dir to be inside openlane
  • a

    Anish

    07/25/2020, 9:02 PM
    but it's installed seperately in order to avoid overriding things
  • a

    Anish

    07/25/2020, 9:02 PM
    since they're 2 different repos
  • a

    Andy

    07/25/2020, 9:04 PM
    Yeah, I do agree that following which commands should be run in which directory was a bit confusing. You really need to follow the instructions from top to bottom in order. It would be slightly easier to follow (IMO) if you assigned what you call
    Copy code
    openlane_working_dir
    to an environment variable and then had commands like
    Copy code
    cd $OPENLANE_WORKING_DIR
    instead of cd ..; cd ..;```
  • a

    Andy

    07/25/2020, 9:05 PM
    The formatting got really messed up there ¯\_(ツ)_/¯
  • t

    tnt

    07/25/2020, 9:08 PM
    Ok, I got further, now 
    TritonRoute
    segfaults 😕
  • a

    Andy

    07/25/2020, 9:09 PM
    Basically, if in the readme section https://github.com/efabless/openlane/blob/master/README.md#setting-up-skywater-pdk where you currently say
    Copy code
    cd pdks
    You instead said
    Copy code
    cd $OPENLANE_WORKING_DIR/pdks
    it may make it a bit easier to follow and less likely to mess up
  • t

    tnt

    07/25/2020, 9:10 PM
    @User yeah. Although, my issue is more because I'm running natively and not within docker and looks like the directory layout inside/outside docker is different.
  • a

    Andy

    07/25/2020, 9:11 PM
    Right that is a bit confusing as well
  • t

    tnt

    07/25/2020, 9:11 PM
    Does tcl have a conditional assign ? 
    general.tcl
    has a 
    set ::env(PDK_ROOT) $::env(OPENLANE_ROOT)/pdks/
    but I'd like to not override it if it's externally provided by the enviroment.
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