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syntax = "proto3";
package tensorflow;
option cc_enable_arenas = true;
option java_outer_classname = "SaverProtos";
option java_multiple_files = true;
option java_package = "org.tensorflow.util";
option go_package = "github.com/tensorflow/tensorflow/tensorflow/go/core/protobuf";
// Protocol buffer representing the configuration of a Saver.
message SaverDef {
// The name of the tensor in which to specify the filename when saving or
// restoring a model checkpoint.
string filename_tensor_name = 1;
// The operation to run when saving a model checkpoint.
string save_tensor_name = 2;
// The operation to run when restoring a model checkpoint.
string restore_op_name = 3;
// Maximum number of checkpoints to keep. If 0, no checkpoints are deleted.
int32 max_to_keep = 4;
// Shard the save files, one per device that has Variable nodes.
bool sharded = 5;
// How often to keep an additional checkpoint. If not specified, only the last
// "max_to_keep" checkpoints are kept; if specified, in addition to keeping
// the last "max_to_keep" checkpoints, an additional checkpoint will be kept
// for every n hours of training.
float keep_checkpoint_every_n_hours = 6;
// A version number that identifies a different on-disk checkpoint format.
// Usually, each subclass of BaseSaverBuilder works with a particular
// version/format. However, it is possible that the same builder may be
// upgraded to support a newer checkpoint format in the future.
enum CheckpointFormatVersion {
// Internal legacy format.
LEGACY = 0;
// Deprecated format: tf.Saver() which works with tensorflow::table::Table.
V1 = 1;
// Current format: more efficient.
V2 = 2;
}
CheckpointFormatVersion version = 7;
}
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