diff --git a/tests/weekly.sh b/tests/weekly.sh
index f9d3e4bc04..d07cc8b2a6 100755
--- a/tests/weekly.sh
+++ b/tests/weekly.sh
@@ -39,15 +39,24 @@ docker_mem_limit="24g"
 # branch)
 tag="latest"
 
-# We assume the first two arguments are the number of threads followed by the
-# GPU ISA to test. These default to 1 and GCN3_X86 is no argument is given.
+# We assume the first three arguments are the number of threads to use for
+# compilation followed by the GPU ISA to test, and finally, the number of
+# "run threads", the maximum number of tests to be run at once. By default the
+# number of compile threads 1 and the GPU ISA is GCN3_X86. The number of
+# "run threads" is equal to the number of compile threads by default.
 threads=1
 gpu_isa=GCN3_X86
+run_threads=1
 if [[ $# -eq 1 ]]; then
     threads=$1
+    run_threads=${threads}
 elif [[ $# -eq 2 ]]; then
     threads=$1
     gpu_isa=$2
+elif [[ $# -eq 3 ]]; then
+    threads=$1
+    gpu_isa=$2
+    run_threads=$3
 else
     if [[ $# -gt 0 ]]; then
         echo "Invalid number of arguments: $#"
@@ -64,7 +73,7 @@ fi
 docker run -u $UID:$GID --volume "${gem5_root}":"${gem5_root}" -w \
     "${gem5_root}"/tests --memory="${docker_mem_limit}" --rm \
     gcr.io/gem5-test/ubuntu-22.04_all-dependencies:${tag} \
-        ./main.py run --length very-long -j${threads} -t${threads} -vv
+        ./main.py run --length very-long -j${threads} -t${run_threads} -vv
 
 mkdir -p tests/testing-results