diff --git a/src/mem/protocol/MOESI_CMP_directory-L1cache.sm b/src/mem/protocol/MOESI_CMP_directory-L1cache.sm
index 11c821b..9bba739 100644
--- a/src/mem/protocol/MOESI_CMP_directory-L1cache.sm
+++ b/src/mem/protocol/MOESI_CMP_directory-L1cache.sm
@@ -278,7 +278,7 @@
   // ** IN_PORTS **
 
   // Use Timer
-  in_port(useTimerTable_in, Addr, useTimerTable) {
+  in_port(useTimerTable_in, Addr, useTimerTable, rank=4) {
     if (useTimerTable_in.isReady(clockEdge())) {
         Addr readyAddress := useTimerTable.nextAddress();
         trigger(Event:Use_Timeout, readyAddress, getCacheEntry(readyAddress),
@@ -287,7 +287,7 @@
   }
 
   // Trigger Queue
-  in_port(triggerQueue_in, TriggerMsg, triggerQueue) {
+  in_port(triggerQueue_in, TriggerMsg, triggerQueue, rank=3) {
     if (triggerQueue_in.isReady(clockEdge())) {
       peek(triggerQueue_in, TriggerMsg) {
         if (in_msg.Type == TriggerType:ALL_ACKS) {
@@ -301,7 +301,7 @@
   }
 
   // Response Network
-  in_port(responseToL1Cache_in, ResponseMsg, responseToL1Cache) {
+  in_port(responseToL1Cache_in, ResponseMsg, responseToL1Cache, rank=2) {
     if (responseToL1Cache_in.isReady(clockEdge())) {
       peek(responseToL1Cache_in, ResponseMsg, block_on="addr") {
         if (in_msg.Type == CoherenceResponseType:ACK) {
@@ -331,7 +331,7 @@
 
 
   // Request Network
-  in_port(requestNetwork_in, RequestMsg, requestToL1Cache) {
+  in_port(requestNetwork_in, RequestMsg, requestToL1Cache, rank=1) {
     if (requestNetwork_in.isReady(clockEdge())) {
       peek(requestNetwork_in, RequestMsg, block_on="addr") {
         assert(in_msg.Destination.isElement(machineID));
@@ -362,7 +362,7 @@
   }
 
   // Mandatory Queue betweens Node's CPU and it's L1 caches
-  in_port(mandatoryQueue_in, RubyRequest, mandatoryQueue, desc="...") {
+  in_port(mandatoryQueue_in, RubyRequest, mandatoryQueue, rank=0) {
     if (mandatoryQueue_in.isReady(clockEdge())) {
       peek(mandatoryQueue_in, RubyRequest, block_on="LineAddress") {
 
diff --git a/src/mem/protocol/MOESI_CMP_directory-L2cache.sm b/src/mem/protocol/MOESI_CMP_directory-L2cache.sm
index e006e86..53b5a94 100644
--- a/src/mem/protocol/MOESI_CMP_directory-L2cache.sm
+++ b/src/mem/protocol/MOESI_CMP_directory-L2cache.sm
@@ -592,7 +592,7 @@
   // ** IN_PORTS **
 
   // Trigger Queue
-  in_port(triggerQueue_in, TriggerMsg, triggerQueue) {
+  in_port(triggerQueue_in, TriggerMsg, triggerQueue, rank=3) {
     if (triggerQueue_in.isReady(clockEdge())) {
       peek(triggerQueue_in, TriggerMsg) {
         if (in_msg.Type == TriggerType:ALL_ACKS) {
@@ -606,7 +606,7 @@
   }
 
   // Response Network
-  in_port(responseNetwork_in, ResponseMsg, responseToL2Cache) {
+  in_port(responseNetwork_in, ResponseMsg, responseToL2Cache, rank=2) {
     if (responseNetwork_in.isReady(clockEdge())) {
       peek(responseNetwork_in, ResponseMsg) {
         assert(in_msg.Destination.isElement(machineID));
@@ -650,7 +650,7 @@
 
 
   // Request Network
-  in_port(requestNetwork_in, RequestMsg, GlobalRequestToL2Cache) {
+  in_port(requestNetwork_in, RequestMsg, GlobalRequestToL2Cache, rank=1) {
     if (requestNetwork_in.isReady(clockEdge())) {
       peek(requestNetwork_in, RequestMsg) {
         if (in_msg.Type == CoherenceRequestType:GETX || in_msg.Type == CoherenceRequestType:DMA_WRITE) {
@@ -677,7 +677,7 @@
     }
   }
 
-  in_port(L1requestNetwork_in, RequestMsg, L1RequestToL2Cache) {
+  in_port(L1requestNetwork_in, RequestMsg, L1RequestToL2Cache, rank=0) {
     if (L1requestNetwork_in.isReady(clockEdge())) {
       peek(L1requestNetwork_in, RequestMsg) {
         assert(in_msg.Destination.isElement(machineID));
diff --git a/src/mem/protocol/MOESI_CMP_directory-dir.sm b/src/mem/protocol/MOESI_CMP_directory-dir.sm
index 04e2888..f6b880d 100644
--- a/src/mem/protocol/MOESI_CMP_directory-dir.sm
+++ b/src/mem/protocol/MOESI_CMP_directory-dir.sm
@@ -241,7 +241,7 @@
 
   // ** IN_PORTS **
 
-  in_port(unblockNetwork_in, ResponseMsg, responseToDir) {
+  in_port(unblockNetwork_in, ResponseMsg, responseToDir, rank=2) {
     if (unblockNetwork_in.isReady(clockEdge())) {
       peek(unblockNetwork_in, ResponseMsg) {
         if (in_msg.Type == CoherenceResponseType:UNBLOCK) {
@@ -268,7 +268,7 @@
     }
   }
 
-  in_port(requestQueue_in, RequestMsg, requestToDir) {
+  in_port(requestQueue_in, RequestMsg, requestToDir, rank=1) {
     if (requestQueue_in.isReady(clockEdge())) {
       peek(requestQueue_in, RequestMsg) {
         if (in_msg.Type == CoherenceRequestType:GETS) {
@@ -301,7 +301,7 @@
   }
 
   // off-chip memory request/response is done
-  in_port(memQueue_in, MemoryMsg, responseFromMemory) {
+  in_port(memQueue_in, MemoryMsg, responseFromMemory, rank=0) {
     if (memQueue_in.isReady(clockEdge())) {
       peek(memQueue_in, MemoryMsg) {
         if (in_msg.Type == MemoryRequestType:MEMORY_READ) {
diff --git a/src/mem/protocol/MOESI_CMP_directory-dma.sm b/src/mem/protocol/MOESI_CMP_directory-dma.sm
index 16dc32a..a3a9f63 100644
--- a/src/mem/protocol/MOESI_CMP_directory-dma.sm
+++ b/src/mem/protocol/MOESI_CMP_directory-dma.sm
@@ -118,7 +118,7 @@
   out_port(respToDirectory_out, ResponseMsg, respToDir, desc="...");
   out_port(triggerQueue_out, TriggerMsg, triggerQueue, desc="...");
 
-  in_port(dmaResponseQueue_in, ResponseMsg, responseFromDir, desc="...") {
+  in_port(dmaResponseQueue_in, ResponseMsg, responseFromDir, rank=2) {
     if (dmaResponseQueue_in.isReady(clockEdge())) {
       peek( dmaResponseQueue_in, ResponseMsg) {
         if (in_msg.Type == CoherenceResponseType:DMA_ACK) {
@@ -139,7 +139,7 @@
   }
 
   // Trigger Queue
-  in_port(triggerQueue_in, TriggerMsg, triggerQueue) {
+  in_port(triggerQueue_in, TriggerMsg, triggerQueue, rank=1) {
     if (triggerQueue_in.isReady(clockEdge())) {
       peek(triggerQueue_in, TriggerMsg) {
         if (in_msg.Type == TriggerType:ALL_ACKS) {
@@ -151,7 +151,7 @@
     }
   }
 
-  in_port(dmaRequestQueue_in, SequencerMsg, mandatoryQueue, desc="...") {
+  in_port(dmaRequestQueue_in, SequencerMsg, mandatoryQueue, rank=0) {
     if (dmaRequestQueue_in.isReady(clockEdge())) {
       peek(dmaRequestQueue_in, SequencerMsg) {
         if (in_msg.Type == SequencerRequestType:LD ) {