hello everyone I m installing openROAD to use it with sky130

Question

hello everyone I m installing openROAD to use it with sky130 but i got those warnings I d like to know if it s necessary to solve them and how to do it thank you all for your time

Ioannis · Answer

The message means that these libraries exist in both your system library path and in the library path supplied by anaconda and the anaconda ones have higher priority Since this situation may cause issues further down the road cmake is warning you about it

Ioannis · Answer

If I were you I would use the openroad docker image instead

Will Ch · Answer

i see

Will Ch · Answer

so it could be a problem as i could not it depends on the library compatibility i suppose it shouldn t be so problematic should it

Will Ch · Answer

sorry i m new how can i get a openROAD docker imagen

Will Ch · Answer

i have sky130 installed on my distro will i have to install all sky130 and everything else on a docker imagen too

Ioannis · Answer

Me saying openroad docker image was a bit of a mistake what you can use is the openlane docker image which comes with a variety of openroad tools preinstalled and a ready made flow you can use

Ioannis · Answer

<https openlane readthedocs io en latest getting started installation index html> you can find installation instructions here

Will Ch · Answer

oh i see thanks

Ioannis · Answer

No problem

Ioannis · Answer

FYI you can take see an example of the openlane docker image being used in the github workflow for the caravel user project template <https github com efabless caravel user project blob main github workflows user project ci yml>

Will Ch · Answer

thanks

Will Ch · Answer

i would like to ask you something more if you don t have problem i have just finished solving possible test issues on OpenROAD installation but i have some warnings on the test 11 that i d like to know it could be a problem that needs to be solve

Will Ch · Answer

here you have the log file

Will Ch · Answer

LastTest log

Ioannis · Answer

I dunno the errors look scary but the end result is a pass I m not really familiar with building openroad myself so if what you want really is openroad and not openlane perhaps < C0161A4A59V|openroad> may be the place to ask

Will Ch · Answer

well i was doing this before i asked there hehe i haven t tried neither operoad neither openlane

Will Ch · Answer

but thanks for the information about openlane i think i m going to try it too

Ioannis · Answer

If you don t mind me asking what are you planning to do

Will Ch · Answer

i m trying to do a project for a university subject introduction to VLSI

Ioannis · Answer

Digital or analog

Will Ch · Answer

digital

Ioannis · Answer

Ah openlane will be easier to you then It provides a complete flow from verilog to GDS2

Will Ch · Answer

really

Will Ch · Answer

maybe i should start installing it

Ioannis · Answer

It might also be best to familiarize yourself with using yosys for synthesis since it s what the openroad ecosystem uses and you ll probably need to separately synthesize your design using yosys to debug your rtl or at least be able to parse yosys output

Will Ch · Answer

yes i have to use yosys for synthesis

Will Ch · Answer

hehe

Ioannis · Answer

If you haven t installed it using the <https github com YosysHQ oss cad suite build> distribution is probably the easiest way

Ioannis · Answer

Just source the environment script in the distribution s root directory and you re good to go as far as yosys and friends are concerned

Ioannis · Answer

Just make sure your professor actually allows you to use openlane

Ioannis · Answer

because part of the point of their assignment may be getting all the tools to work together by yourself

Will Ch · Answer

yeah that yosys is the one i m going to install right now

Will Ch · Answer

yes i ll ask my profesor about openlane

Will Ch · Answer

yeah my profesor talks about using openroad but if openlane is almost the same but easier maybe there won t be any problem

Will Ch · Answer

but that s why i m trying to install openroad first in case my profesor don t allow me to use openlane for this subject

Ioannis · Answer

If they want you to use openroad there s probably a reason for that Good on you for planning to ask

Will Ch · Answer

thank you so much