diff --git a/metal/paddle-mobile/paddle-mobile/Executor.swift b/metal/paddle-mobile/paddle-mobile/Executor.swift
index a799ec7d1074e8dc372c3801a028050e0beb602e..303e35bf73d5c90dc6311aa29b25e77b47ba053b 100644
--- a/metal/paddle-mobile/paddle-mobile/Executor.swift
+++ b/metal/paddle-mobile/paddle-mobile/Executor.swift
@@ -14,7 +14,7 @@
 
 import Foundation
 
-let testTo = 99
+let testTo = 10
 
 public class ResultHolder<P: PrecisionType> {
   public let dim: [Int]
@@ -62,7 +62,7 @@ public class Executor<P: PrecisionType> {
     queue = inQueue
     for block in inProgram.programDesc.blocks {
       //block.ops.count
-      for i in 0..<4 {
+      for i in 0..<testTo {
         let op = block.ops[i]
         do {
           let op = try OpCreator<P>.shared.creat(device: inDevice, opDesc: op, scope: inProgram.scope)
diff --git a/metal/paddle-mobile/paddle-mobile/Operators/Kernels/PreluKernel.swift b/metal/paddle-mobile/paddle-mobile/Operators/Kernels/PreluKernel.swift
index d1d82aeb539e9c433c579e797c187c682b2ac235..ad925eb174414ed8f48cc8dd5bf090bc2ed0aed2 100644
--- a/metal/paddle-mobile/paddle-mobile/Operators/Kernels/PreluKernel.swift
+++ b/metal/paddle-mobile/paddle-mobile/Operators/Kernels/PreluKernel.swift
@@ -17,6 +17,7 @@ class PreluKernel<P: PrecisionType>: Kernel, Computable{
     } else {
       super.init(device: device, inFunctionName: "prelu_other")
     }
+    param.alpha.initBuffer(device: device)
     param.output.initTexture(device: device, inTranspose: param.input.transpose)
   }