refine by reviewer's advice

paddle/fluid/platform/enforce.h

@@ -263,7 +263,7 @@ inline void throw_on_error(T e) {
  *    PADDLE_ENFORCE_EQ(a, b);
  *
  *    will raise an expression described as follows:
- *    "Data check failed. Expected input a == b, but received a(1) != b(2)."
+ *    "Enforce failed. Expected input a == b, but received a(1) != b(2)."
  *      with detailed stack information.
  *
  *    extra messages is also supported, for example:
@@ -293,7 +293,7 @@ inline void throw_on_error(T e) {
 #define __PADDLE_BINARY_COMPARE(__VAL0, __VAL1, __CMP, __INV_CMP, ...)  \
   do {                                                                  \
     if (UNLIKELY(!((__VAL0)__CMP(__VAL1)))) {                           \
-      PADDLE_THROW("Data check failed. Expected %s " #__CMP             \
+      PADDLE_THROW("Enforce failed. Expected %s " #__CMP                \
                    " %s, but received %s:%s " #__INV_CMP " %s:%s.\n%s", \
                    #__VAL0, #__VAL1, #__VAL0,                           \
                    paddle::string::to_string(__VAL0), #__VAL1,          \

paddle/fluid/platform/enforce_test.cc

@@ -56,7 +56,7 @@ TEST(ENFORCE_EQ, NO_EXTRA_MSG_FAIL) {
     caught_exception = true;
     HasPrefix(
         StringPiece(error.what()),
-        "Data check failed. Expected a == 1 + 3, but received a:2 != 1 + 3:4.");
+        "Enforce failed. Expected a == 1 + 3, but received a:2 != 1 + 3:4.");
   }
   EXPECT_TRUE(caught_exception);
 }
@@ -69,7 +69,7 @@ TEST(ENFORCE_EQ, EXTRA_MSG_FAIL) {
   } catch (paddle::platform::EnforceNotMet error) {
     caught_exception = true;
     HasPrefix(StringPiece(error.what()),
-              "Data check failed. Expected a == 1 + 3, but received a:2 != 1 + "
+              "Enforce failed. Expected a == 1 + 3, but received a:2 != 1 + "
               "3:4.\ntheir size not match");
   }
   EXPECT_TRUE(caught_exception);
@@ -89,7 +89,7 @@ TEST(ENFORCE_NE, FAIL) {
     caught_exception = true;
     EXPECT_TRUE(HasPrefix(
         StringPiece(error.what()),
-        "Data check failed. Expected 1.0 != 1UL, but received 1.0:1 == 1UL:1."))
+        "Enforce failed. Expected 1.0 != 1UL, but received 1.0:1 == 1UL:1."))
         << error.what() << " does not have expected prefix";
   }
   EXPECT_TRUE(caught_exception);
@@ -104,7 +104,7 @@ TEST(ENFORCE_GT, FAIL) {
     caught_exception = true;
     EXPECT_TRUE(HasPrefix(
         StringPiece(error.what()),
-        "Data check failed. Expected 1 > 2UL, but received 1:1 <= 2UL:2."));
+        "Enforce failed. Expected 1 > 2UL, but received 1:1 <= 2UL:2."));
   }
   EXPECT_TRUE(caught_exception);
 }
@@ -123,7 +123,7 @@ TEST(ENFORCE_GE, FAIL) {
     caught_exception = true;
     EXPECT_TRUE(HasPrefix(
         StringPiece(error.what()),
-        "Data check failed. Expected 1 >= 2UL, but received 1:1 < 2UL:2."));
+        "Enforce failed. Expected 1 >= 2UL, but received 1:1 < 2UL:2."));
   }
   EXPECT_TRUE(caught_exception);
 }
@@ -143,7 +143,7 @@ TEST(ENFORCE_LE, FAIL) {
     caught_exception = true;
     EXPECT_TRUE(HasPrefix(
         StringPiece(error.what()),
-        "Data check failed. Expected 1 > 2UL, but received 1:1 <= 2UL:2."));
+        "Enforce failed. Expected 1 > 2UL, but received 1:1 <= 2UL:2."));
   }
   EXPECT_TRUE(caught_exception);
 }
@@ -160,7 +160,7 @@ TEST(ENFORCE_LT, FAIL) {
   } catch (paddle::platform::EnforceNotMet error) {
     caught_exception = true;
     EXPECT_TRUE(HasPrefix(StringPiece(error.what()),
-                          "Data check failed. Expected 1UL < 0.12, but "
+                          "Enforce failed. Expected 1UL < 0.12, but "
                           "received 1UL:1 >= 0.12:0.12."));
   }
   EXPECT_TRUE(caught_exception);

paddle/fluid/platform/gpu_info.cc

@@ -100,25 +100,26 @@ size_t GpuMinChunkSize() {
 
 size_t GpuMaxChunkSize() {
   size_t total = 0;
-  size_t available_memory = 0;
+  size_t available = 0;
 
-  GpuMemoryUsage(&available_memory, &total);
-  VLOG(10) << "GPU Usage " << available_memory / 1024 / 1024 << "M/"
+  GpuMemoryUsage(&available, &total);
+  VLOG(10) << "GPU Usage " << available / 1024 / 1024 << "M/"
            << total / 1024 / 1024 << "M";
   size_t reserving = static_cast<size_t>(0.05 * total);
   // If available less than minimum chunk size, no usable memory exists.
-  available_memory = std::min(
-      std::max(available_memory, GpuMinChunkSize()) - GpuMinChunkSize(),
+  available =
+      std::min(std::max(available, GpuMinChunkSize()) - GpuMinChunkSize(),
                total - reserving);
 
   // Reserving the rest memory for page tables, etc.
 
-  size_t allocating_memory = static_cast<size_t>(
-      FLAGS_fraction_of_gpu_memory_to_use * (total - reserving));
+  size_t allocating = static_cast<size_t>(FLAGS_fraction_of_gpu_memory_to_use *
+                                          (total - reserving));
 
-  PADDLE_ENFORCE_LE(allocating_memory, available_memory);
+  PADDLE_ENFORCE_LE(allocating, available,
+                    "Insufficient GPU memory to allocation.");
 
-  return allocating_memory;
+  return allocating;
 }
 
 void GpuMemcpyAsync(void *dst, const void *src, size_t count,