diff --git a/spdl/mp.sh b/spdl/mp.sh
new file mode 100755
index 0000000..00d2ed3
--- /dev/null
+++ b/spdl/mp.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+#
+# Multi-protocol analysis
+#
+# given a list of input files, test them in parallel
+# limit number of runs to 5
+
+ulimit -v 100000
+cat $* | ../src/scyther -a -r3