refactor: remove parallel runs
diff --git a/Makefile b/Makefile
index f319f4c..087d172 100644
--- a/Makefile
+++ b/Makefile
@@ -318,9 +318,9 @@
.PHONY: caravel-sta
caravel-sta: ./env/spef-mapping.tcl
- @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-typ -j3
- @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-fast -j3
- @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-slow -j3
+ @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-typ
+ @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-fast
+ @$(MAKE) -C $(TIMING_ROOT) -f $(TIMING_ROOT)/timing.mk caravel-timing-slow
@echo =================================================Summary=================================================
@find $(PROJECT_ROOT)/signoff/caravel/openlane-signoff -name "*-summary.rpt" | head -n1 \
| xargs tail -n2 | head -n1
