diff --git a/compiler/globals.py b/compiler/globals.py
index abbd0f4c..af89eaa4 100644
--- a/compiler/globals.py
+++ b/compiler/globals.py
@@ -225,12 +225,17 @@ def read_config(config_file, is_unit_test=True):
         
     # If config didn't set output name, make a reasonable default.
     if (OPTS.output_name == ""):
-        OPTS.output_name = "sram_{0}b_{1}w_{2}rw_{3}w_{4}r_{5}".format(OPTS.word_size,
-                                                                       OPTS.num_words,
-                                                                       OPTS.num_rw_ports,
-                                                                       OPTS.num_w_ports,
-                                                                       OPTS.num_r_ports,
-                                                                       OPTS.tech_name)
+        ports = ""
+        if OPTS.num_rw_ports>0:
+            ports += "{}rw_".format(OPTS.num_rw_ports)
+        if OPTS.num_w_ports>0:
+            ports += "{}w_".format(OPTS.num_w_ports)
+        if OPTS.num_r_ports>0:
+            ports += "{}r_".format(OPTS.num_r_ports)
+        OPTS.output_name = "sram_{0}b_{1}_{2}{3}".format(OPTS.word_size,
+                                                         OPTS.num_words,
+                                                         ports,
+                                                         OPTS.tech_name)
         
 
         
diff --git a/lib/scn4m_subm/configs/sram_1rw_128b_1024w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_128b_1024_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_128b_1024w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_128b_1024_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_32b_1024w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_32b_1024_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_32b_1024w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_32b_1024_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_32b_2048w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_32b_2048_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_32b_2048w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_32b_2048_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_32b_256w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_32b_256_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_32b_256w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_32b_256_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_32b_512w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_32b_512_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_32b_512w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_32b_512_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_64b_1024w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_64b_1024_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_64b_1024w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_64b_1024_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_8b_1024w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_8b_1024_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_8b_1024w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_8b_1024_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_8b_256w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_8b_256_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_8b_256w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_8b_256_1rw_scn4m_subm.py
diff --git a/lib/scn4m_subm/configs/sram_1rw_8b_512w_scn4m_subm.py b/lib/scn4m_subm/configs/sram_8b_512_1rw_scn4m_subm.py
similarity index 100%
rename from lib/scn4m_subm/configs/sram_1rw_8b_512w_scn4m_subm.py
rename to lib/scn4m_subm/configs/sram_8b_512_1rw_scn4m_subm.py