1 files changed, 5 insertions, 1 deletions

diff --git a/src/pruning.c b/src/pruning.c
index f61912c..8cfa582 100644
--- a/src/pruning.c
+++ b/src/pruning.c
@@ -1,6 +1,7 @@
 #include "pruning.h"
 
 /* Chunks for multithreading */
+/* TODO: try smaller */
 #define NCHUNKS    100000
 
 static int         findchunk(PruneData *pd, int nchunks, uint64_t i);
@@ -114,7 +115,7 @@ genptable(PruneData *pd, int nthreads)
         }
         pd->generated = true;
 
-        nchunks = MIN(pd->coord->max, NCHUNKS);
+        nchunks = MIN(pd->coord->max/2, NCHUNKS);
         fprintf(stderr, "Cannot load %s, generating it "
                         "with %d threads and %d chunks\n",
                         pd->filename, nthreads, nchunks); 
@@ -193,6 +194,9 @@ genptable_fixnasty(PruneData *pd, int d)
         Cube c, cc;
         Trans t[NTRANS];
 
+        if (pd->coord->trans == NULL)
+                return;
+
         for (i = 0; i < pd->coord->max; i++) {
                 if (ptableval_index(pd, i) == d) {
                         n = pd->coord->trans(i, t);