diff --git a/test_regress/t/t_uvm_hello_all_v2017_1_0_dpi.py b/test_regress/t/t_uvm_hello_all_v2017_1_0_dpi.py
index 2cdca660e..c410f628b 100755
--- a/test_regress/t/t_uvm_hello_all_v2017_1_0_dpi.py
+++ b/test_regress/t/t_uvm_hello_all_v2017_1_0_dpi.py
@@ -19,8 +19,8 @@ if test.have_dev_gcov:
 
 test.compile(v_flags2=[
     "--binary",
+    test.build_jobs,
     "--vpi",
-    "-j 0",
     "--CFLAGS -O0",
     "-Wall",
     "+incdir+t/uvm",  #
diff --git a/test_regress/t/t_uvm_hello_all_v2017_1_0_nodpi.py b/test_regress/t/t_uvm_hello_all_v2017_1_0_nodpi.py
index 9bb7b08fe..38987d1e9 100755
--- a/test_regress/t/t_uvm_hello_all_v2017_1_0_nodpi.py
+++ b/test_regress/t/t_uvm_hello_all_v2017_1_0_nodpi.py
@@ -18,7 +18,7 @@ if test.have_dev_gcov:
 
 test.compile(v_flags2=[
     "--binary",
-    "-j 0",
+    test.build_jobs,
     "--CFLAGS -O0",
     "-Wall",
     "+incdir+t/uvm",  #
diff --git a/test_regress/t/t_uvm_hello_all_v2020_3_1_dpi.py b/test_regress/t/t_uvm_hello_all_v2020_3_1_dpi.py
index 35b107f08..b6ffb1f15 100755
--- a/test_regress/t/t_uvm_hello_all_v2020_3_1_dpi.py
+++ b/test_regress/t/t_uvm_hello_all_v2020_3_1_dpi.py
@@ -19,8 +19,8 @@ if test.have_dev_gcov:
 
 test.compile(v_flags2=[
     "--binary",
+    test.build_jobs,
     "--vpi",
-    "-j 0",
     "--CFLAGS -O0",
     "-Wall",
     "+incdir+t/uvm",  #
diff --git a/test_regress/t/t_uvm_hello_all_v2020_3_1_nodpi.py b/test_regress/t/t_uvm_hello_all_v2020_3_1_nodpi.py
index 5184f0e79..0eeea63df 100755
--- a/test_regress/t/t_uvm_hello_all_v2020_3_1_nodpi.py
+++ b/test_regress/t/t_uvm_hello_all_v2020_3_1_nodpi.py
@@ -18,7 +18,7 @@ if test.have_dev_gcov:
 
 test.compile(v_flags2=[
     "--binary",
-    "-j 0",
+    test.build_jobs,
     "--CFLAGS -O0",
     "-Wall",
     "+incdir+t/uvm",  #