diff --git a/Project.toml b/Project.toml
index 3fa0059..7e8950a 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "GCMAES"
 uuid = "4aa9d100-eb0f-11e8-15f1-25748831eb3b"
 authors = ["Yao Lu <luyaocns@gmail.com>"]
-version = "0.1.24"
+version = "0.1.25"
 
 [deps]
 BSON = "fbb218c0-5317-5bc6-957e-2ee96dd4b1f0"
diff --git a/src/util.jl b/src/util.jl
index 3561ff0..03c743c 100644
--- a/src/util.jl
+++ b/src/util.jl
@@ -180,6 +180,7 @@ function limit_mem_per_cpu(mem)
 end
 
 function make_virtual_jobarray(n)
+    !inmpi() && return nothing
     if !haskey(ENV, "SLURM_ARRAY_TASK_ID")
         ENV["SLURM_ARRAY_TASK_ID"] = 0
         ENV["SLURM_ARRAY_TASK_COUNT"] = 1