Implement parallel marking (#48600)

Using a work-stealing queue after Chase and Lev, optimized for weak memory models by Le et al. Default number of GC threads is half the number of compute threads. Co-authored-by: Gabriel Baraldi <[email protected]> Co-authored-by: Valentin Churavy <[email protected]>
JuliaLang · Apr 28, 2023 · 4c835f1 · 4c835f1
1 parent bdc619f
commit 4c835f1
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/cluster.jl b/src/cluster.jl
@@ -1331,7 +1331,10 @@ function process_opts(opts)
     end
 
     # Propagate --threads to workers
-    exeflags = opts.nthreads > 0 ? `--threads=$(opts.nthreads)` : ``
+    threads = opts.nthreads > 0 ? `--threads=$(opts.nthreads)` : ``
+    gcthreads = opts.ngcthreads > 0 ? `--gcthreads=$(opts.ngcthreads)` : ``
+
+    exeflags = `$threads $gcthreads`
 
     # add processors
     if opts.nprocs > 0