1 files changed, 7 insertions, 1 deletions
diff --git a/mg2d.c b/mg2d.c
index 4414064..548858e 100644
--- a/mg2d.c
+++ b/mg2d.c
@@ -2228,7 +2228,13 @@ int mg2d_interp(MG2DContext *ctx,
     NDArray *a_src;
     int ret;
 
-    gt = mg2di_gt_alloc(2, GRID_TRANSFER_LAGRANGE_5);
+    if (!priv->tp) {
+        ret = threadpool_init(ctx);
+        if (ret < 0)
+            return ret;
+    }
+
+    gt = mg2di_gt_alloc(2, GRID_TRANSFER_LAGRANGE_7);
     if (!gt)
         return -ENOMEM;