diff --git a/checkin_notes b/checkin_notes
index b0e759f464..d4ed000081 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -2790,3 +2790,10 @@ David  Mar 28 2008
 
     sched/
         sched_send.C
+
+David  Mar 28 2008
+    - some debugging code
+    client/
+        client_state.C
+    lib/
+        coproc.C,h
diff --git a/client/client_state.C b/client/client_state.C
index c4074a58c1..e5e1a1ced9 100644
--- a/client/client_state.C
+++ b/client/client_state.C
@@ -239,6 +239,9 @@ int CLIENT_STATE::init() {
     show_host_info();
 
     coprocs.get();
+#if 0
+    fake_cuda(coprocs);
+#endif
     for (i=0; i<coprocs.coprocs.size(); i++) {
         COPROC& c = coprocs.coprocs[i];
         msg_printf(NULL, MSG_INFO, "Coprocessor: %s (%d)", c.name, c.count);
diff --git a/lib/coproc.C b/lib/coproc.C
index 41947d300e..cd70bef0b8 100644
--- a/lib/coproc.C
+++ b/lib/coproc.C
@@ -90,6 +90,32 @@ void COPROC_CUDA::get(COPROCS& coprocs) {
     }
 }
 
+// add a non-existent CUDA coproc (for debugging)
+//
+void fake_cuda(COPROCS& coprocs) {
+   COPROC_CUDA cc;
+   strcpy(cc.name, "cuda 0");
+   cc.count = 1;
+   cc.prop.totalGlobalMem = 1000;
+   cc.prop.sharedMemPerBlock = 100;
+   cc.prop.regsPerBlock = 8;
+   cc.prop.warpSize = 10;
+   cc.prop.memPitch = 10;
+   cc.prop.maxThreadsPerBlock = 20;
+   cc.prop.maxThreadsDim[0] = 2;
+   cc.prop.maxThreadsDim[1] = 2;
+   cc.prop.maxThreadsDim[2] = 2;
+   cc.prop.maxGridSize[0] = 10;
+   cc.prop.maxGridSize[1] = 10;
+   cc.prop.maxGridSize[2] = 10;
+   cc.prop.totalConstMem = 10;
+   cc.prop.major = 1;
+   cc.prop.minor = 1;
+   cc.prop.clockRate = 10000;
+   cc.prop.textureAlignment = 1000;
+   coprocs.coprocs.push_back(cc);
+}
+
 void COPROC_CUDA::write_xml(FILE* f) {
     fprintf(f,
         "<coproc_cuda>\n"
@@ -107,7 +133,8 @@ void COPROC_CUDA::write_xml(FILE* f) {
         "   <major>%d</major>\n"
         "   <minor>%d</minor>\n"
         "   <clockRate>%d</clockRate>\n"
-        "   <textureAlignment>%u</textureAlignment>\n",
+        "   <textureAlignment>%u</textureAlignment>\n"
+        "</coproc_cuda>\n",
         count,
         prop.name,
         (unsigned int)prop.totalGlobalMem,
diff --git a/lib/coproc.h b/lib/coproc.h
index b0e0412c16..d240e7667e 100644
--- a/lib/coproc.h
+++ b/lib/coproc.h
@@ -73,4 +73,6 @@ struct COPROC_CELL_SPE : public COPROC {
     virtual ~COPROC_CELL_SPE(){}
 };
 
+void fake_cuda(COPROCS&);
+
 #endif