hi, for example I got an error in routing phase, I...
# openlaneb
Burak Aykenar
07/14/2022, 11:24 AMhi, for example I got an error in routing phase, I did change Macro placement file (macro.cfg). I don't want to rerun stages up to placement. What is the proper way of doing this in caravel_user_project mpw repo? Rewrite make script? Running openlane interactively? regards,
Burak Aykenar
07/14/2022, 12:51 PMin Makefile under openlane folder of caravel_user_project repo:
@if [ -f ./$*/interactive.tcl ]; then\
docker run --rm -v $(OPENLANE_ROOT):/openlane \
-v $(PDK_ROOT):$(PDK_ROOT) \
-v $(PWD)/..:$(PWD)/.. \
-v $(MCW_ROOT):$(MCW_ROOT) \
-v $(CARAVEL_ROOT):$(CARAVEL_ROOT) \
-e MCW_ROOT=$(MCW_ROOT) \
-e PDK_ROOT=$(PDK_ROOT) \
-e CARAVEL_ROOT=$(CARAVEL_ROOT) \
-e PDK=$(PDK) \
-e TEST_MISMATCHES=tools \
-e MISMATCHES_OK=1 \
-u $(shell id -u $(USER)):$(shell id -g $(USER)) \
$(OPENLANE_IMAGE_NAME) sh -c $(OPENLANE_INTERACTIVE_COMMAND);\
else\
docker run --rm -v $(OPENLANE_ROOT):/openlane \
-v $(PDK_ROOT):$(PDK_ROOT) \
-v $(PWD)/..:$(PWD)/.. \
-v $(CARAVEL_ROOT):$(CARAVEL_ROOT) \
-v $(MCW_ROOT):$(MCW_ROOT) \
-e MCW_ROOT=$(MCW_ROOT) \
-e PDK=$(PDK) \
-e PDK_ROOT=$(PDK_ROOT) \
-e CARAVEL_ROOT=$(CARAVEL_ROOT) \
-e TEST_MISMATCHES=tools \
-e MISMATCHES_OK=1 \
-u $(shell id -u $(USER)):$(shell id -g $(USER)) \
$(OPENLANE_IMAGE_NAME) sh -c $(OPENLANE_BASIC_COMMAND);\
I want to run openlane -from placement -to ... for example, so i think i need to change OPENLANE_BASIC_COMMAND by adding -from placement
Burak Aykenar
07/14/2022, 12:57 PMI changed
"OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from placement -design ./$* -save_path .. -save -tag $* -overwrite" "
but it gives error
[INFO ODB-0222] Reading LEF file: /home/mbaykenar/Desktop/first_asic/openlane/pulpino_top_wrapper/runs/pulpino_top_wrapper/tmp/merged_unpadded.lef
[INFO ODB-0223] Created 13 technology layers
[INFO ODB-0224] Created 25 technology vias
[INFO ODB-0225] Created 442 library cells
[INFO ODB-0226] Finished LEF file: /home/mbaykenar/Desktop/first_asic/openlane/pulpino_top_wrapper/runs/pulpino_top_wrapper/tmp/merged_unpadded.lef
[ERROR ORD-0003] 0 does not exist.
ORD-0003
[ERROR]: during executing openroad script /openlane/scripts/openroad/replace.tcl
[ERROR]: Exit code: 1
[ERROR]: Last 10 lines:
child process exited abnormally
Burak Aykenar
07/14/2022, 12:59 PMhimmmm, i think i got errors since the run simply clean out everything in results folder :l
Burak Aykenar
07/14/2022, 1:01 PMin openlane scripts/tcl_commands/all.tcl
set flags {
-init_design_config
-overwrite
-last_run
}
first i will do synthesis and then call openlane with -last_run option
m
Matt Venn
07/14/2022, 1:41 PMI almost never try to continue a run, but it is possible
Matt Venn
07/14/2022, 1:41 PMusually it's easier to just restart the run
m
Matt Liberty
07/14/2022, 8:23 PMYou can use -from to control flow.tcl
b
Burak Aykenar
07/18/2022, 8:41 AMok this is the command when you run "make ..." inside the openlane/Makefile file:
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -design ./$* -save_path .. -save -tag $* -overwrite"
Burak Aykenar
07/18/2022, 8:41 AMi changed it to:
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from synthesis -to synthesis -design ./$* -save_path .. -save -tag $* -overwrite"
Burak Aykenar
07/18/2022, 8:42 AMthen i wanted to continue from floorplan and do placement, so i changed this again and run make ..., beware of clearing out -overwrite option:
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from floorplan -to placement -design ./$* -save_path .. -save -tag $*"
Burak Aykenar
07/18/2022, 8:42 AMit works, but creating and "interactive.tcl" seems better option
Burak Aykenar
07/18/2022, 8:45 AM@Matt Venn "usually it's easier to just restart the run"
i have a huge design, i had congestion issues in routing, i am trying different placement and routing options in config.tcl and macro placements, synthesis takes too much time if i restart the flow each time, that is the reason i want to continue from a previous synth run
👍 1
m
Matt Venn
07/18/2022, 8:55 AMPlease let me know what works best for you
Matt Venn
07/18/2022, 8:55 AMAlso could be good to ask @donn or @Manar Abdelatty
d
donn
07/18/2022, 9:42 AM./flow.tcl -design whatever -last_run -interactive👍 1
donn
07/18/2022, 9:42 AMAlso, Manar left the team a while back.
✅ 1
b
Burak Aykenar
07/19/2022, 6:41 AMok i still got problems in running openlane in "caravel_user_project" repo step by step
the case is: i first synth the design with
#OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from synthesis -to synthesis -design ./$* -save_path .. -save -tag $* -overwrite"
then i want to do floorplan phase with:
set ::env(DIE_AREA) "0 0 600 600"
and in makefile
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from floorplan -to floorplan -design ./$* -save_path .. -save -tag $*"
then i change
set ::env(DIE_AREA) "0 0 800 800"
and again run makefile with:
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -from floorplan -to floorplan -design ./$* -save_path .. -save -tag $*"
but i check def in floorplan and it is still 600x600. so if i don't write -overwrite, the design runs from previous configurations, if i write -overwrite flag and do -from floorplan -to floorplan, then the openlane removes synth result and give error in floorplan that there is no netlist
m
Matt Venn
07/19/2022, 7:08 AM@donn @Kareem Farid this is surely worth looking at getting working. Is this a caravel bug or an openlane bug?
d
donn
07/19/2022, 12:01 PMI'll take a look pending proper caffeination
😅 1
b
Burak Aykenar
07/25/2022, 6:11 AMso i tried some other things like trying to run openlane interactively by changing
OPENLANE_BASIC_COMMAND = "cd $(PWD)/../openlane && flow.tcl -interactive"
it gives:
[INFO]: Version: 2022.02.23_02.50.41
[INFO]: Running interactively
[INFO]: Note, that post_run_hooks.tcl will not be sourced automatically
mkdir -p ../signoff/zeroriscy_multdiv_fast/
cp zeroriscy_multdiv_fast/runs/zeroriscy_multdiv_fast/OPENLANE_VERSION ../signoff/zeroriscy_multdiv_fast/
cp zeroriscy_multdiv_fast/runs/zeroriscy_multdiv_fast/PDK_SOURCES ../signoff/zeroriscy_multdiv_fast/
cp zeroriscy_multdiv_fast/runs/zeroriscy_multdiv_fast/reports/final_summary_report.csv ../signoff/zeroriscy_multdiv_fast/
make[1]: Leaving directory '/home/mbaykenar/Desktop/first_asic/openlane'
and quit
so i couldn't find a way to run floorplan without running synthesis again
-overwrite option removes everything in run folder by looking at all.tcl file:
set ::env(RUN_TAG) "$tag"
set ::env(RUN_DIR) "$run_path"
set ::env(RESULTS_DIR) "$::env(RUN_DIR)/results"
set ::env(TMP_DIR) "$::env(RUN_DIR)/tmp"
set ::env(LOGS_DIR) "$::env(RUN_DIR)/logs"
set ::env(REPORTS_DIR) "$::env(RUN_DIR)/reports"
set ::env(GLB_CFG_FILE) "$::env(RUN_DIR)/config.tcl"
puts_info "Run Directory: $::env(RUN_DIR)"
if { [file exists $::env(GLB_CFG_FILE)] } {
if { [info exists flags_map(-overwrite)] } {
puts_info "Removing existing $::env(RUN_DIR)..."
after 1000
file delete -force $::env(RUN_DIR)
} else {
if { ![info exists flags_map(-last_run)] } {
puts_warn "A run for $::env(DESIGN_NAME) with tag '$tag' already exists. Pass the -overwrite option to overwrite it."
after 1000
}
puts_info "Sourcing $::env(GLB_CFG_FILE). Note that any changes to the DESIGN config file will NOT be applied."
source $::env(GLB_CFG_FILE)
if { [info exists ::env(CURRENT_DEF)] && $::env(CURRENT_DEF) != 0 } {
puts_info "Current DEF: $::env(CURRENT_DEF)."
puts_info "Use 'set_def file_name.def' if you'd like to change it."
}
after 1000
if { [info exists ::env(BASIC_PREP_COMPLETE)] && "$::env(BASIC_PREP_COMPLETE)" == "1"} {
set skip_basic_prep 1
}
}
}
but i want synth results to be kept. -from floorplan does not have an effect if you don't write -overwrite, and if you write you lost netlist and get an error
Burak Aykenar
07/25/2022, 11:45 AMnow i have an idea about what's happening, a new config.tcl file is generated after the run inside the run folder, and the new runs take this file into consideration, so if you change your config.tcl file it has no effect on the previous run
Burak Aykenar
07/25/2022, 11:49 AMstrangely some config variables are defined twice in this generated config.tcl file such as DIE_AREA
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