change stride to stride_shift

1 files changed, 2 insertions, 2 deletions

diff --git a/vowpalwabbit/lrq.cc b/vowpalwabbit/lrq.cc
index 05e141ee..3263aa1d 100644
--- a/vowpalwabbit/lrq.cc
+++ b/vowpalwabbit/lrq.cc
@@ -105,7 +105,7 @@ namespace LRQ {
                   {
                     if (! do_dropout || cheesyrbit (lrq.seed))
                       {
-                        uint32_t lwindex = (uint32_t)(lindex + n * all.reg.stride);
+                        uint32_t lwindex = (uint32_t)(lindex + (n << all.reg.stride_shift));
 
                         float* lw = &all.reg.weight_vector[lwindex & all.reg.weight_mask];
 
@@ -122,7 +122,7 @@ namespace LRQ {
                             // NB: ec.ft_offset added by base learner
                             float rfx = rf->x;
                             size_t rindex = rf->weight_index;
-                            uint32_t rwindex = (uint32_t)(rindex + n * all.reg.stride);
+                            uint32_t rwindex = (uint32_t)(rindex + (n << all.reg.stride_shift));
         
                             feature lrq; 
                             lrq.x = scale * *lw * lfx * rfx;