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authorGravatar Kay Zhu <kayzhu@google.com>2017-07-12 14:22:54 -0700
committerGravatar TensorFlower Gardener <gardener@tensorflow.org>2017-07-12 14:30:58 -0700
commit6d6dda807c539efd59f074ef02d52e0140480c1c (patch)
tree7ac90c05b6a36a637a1be3a628218cecb58e6e1c /tensorflow/compiler/plugin
parent6b28eb084349f90213f6ea7762e69d746731b26f (diff)
[TF:XLA] Fix an issue where plugin/Executor backend is used by default when TF
is built from source with XLA support. See Github issue #11122. The priority of the executor backend is set to be higher than the default (50) and CPUs (<100), and is therefore selected as the default when tf.device is not explicitly specified. PiperOrigin-RevId: 161717173
Diffstat (limited to 'tensorflow/compiler/plugin')
-rw-r--r--tensorflow/compiler/plugin/executor/device.cc7
1 files changed, 6 insertions, 1 deletions
diff --git a/tensorflow/compiler/plugin/executor/device.cc b/tensorflow/compiler/plugin/executor/device.cc
index bbc39dc03f..d902f9df6a 100644
--- a/tensorflow/compiler/plugin/executor/device.cc
+++ b/tensorflow/compiler/plugin/executor/device.cc
@@ -47,7 +47,12 @@ Status XlaExaDeviceFactory::CreateDevices(const SessionOptions& options,
return Status::OK();
}
-REGISTER_LOCAL_DEVICE_FACTORY(DEVICE_XLA_EXEC, XlaExaDeviceFactory, 110);
+// Set priority to be below the default priority (50), so that Executor is not
+// selected as a high priority device over other default devices.
+// See constructor comments for Registrar in
+// tensorflow/core/common_runtime/device_factory.h for a list of priority for
+// devices.
+REGISTER_LOCAL_DEVICE_FACTORY(DEVICE_XLA_EXEC, XlaExaDeviceFactory, 40);
// Kernel registrations