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 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
 #pragma once
 
 /*
  * This file defines SessionOptions Config Keys and format of the Config Values.
  *
  * The Naming Convention for a SessionOptions Config Key,
  * "[Area][.[SubArea1].[SubArea2]...].[Keyname]"
  * Such as "ep.cuda.use_arena"
  * The Config Key cannot be empty
  * The maximum length of the Config Key is 128
  *
  * The string format of a SessionOptions Config Value is defined individually for each Config.
  * The maximum length of the Config Value is 1024
  */
 
 // Key for disable PrePacking,
 // If the config value is set to "1" then the prepacking is disabled, otherwise prepacking is enabled (default value)
 static const char* const kOrtSessionOptionsConfigDisablePrepacking = "session.disable_prepacking";
 
 // A value of "1" means allocators registered in the env will be used. "0" means the allocators created in the session
 // will be used. Use this to override the usage of env allocators on a per session level.
 static const char* const kOrtSessionOptionsConfigUseEnvAllocators = "session.use_env_allocators";
 
 // Set to 'ORT' (case sensitive) to load an ORT format model.
 // If unset, model type will default to ONNX unless inferred from filename ('.ort' == ORT format) or bytes to be ORT
 static const char* const kOrtSessionOptionsConfigLoadModelFormat = "session.load_model_format";
 
 // Set to 'ORT' (case sensitive) to save optimized model in ORT format when SessionOptions.optimized_model_path is set.
 // If unset, format will default to ONNX unless optimized_model_filepath ends in '.ort'.
 static const char* const kOrtSessionOptionsConfigSaveModelFormat = "session.save_model_format";
 
 // If a value is "1", flush-to-zero and denormal-as-zero are applied. The default is "0".
 // When multiple sessions are created, a main thread doesn't override changes from succeeding session options,
 // but threads in session thread pools follow option changes.
 // When ORT runs with OpenMP, the same rule is applied, i.e. the first session option to flush-to-zero and
 // denormal-as-zero is only applied to global OpenMP thread pool, which doesn't support per-session thread pool.
 // Note that an alternative way not using this option at runtime is to train and export a model without denormals
 // and that's recommended because turning this option on may hurt model accuracy.
 static const char* const kOrtSessionOptionsConfigSetDenormalAsZero = "session.set_denormal_as_zero";
 
 // It controls to run quantization model in QDQ (QuantizelinearDeQuantizelinear) format or not.
 // "0": enable. ORT does fusion logic for QDQ format.
 // "1": disable. ORT doesn't do fusion logic for QDQ format.
 // Its default value is "0" unless the DirectML execution provider is registered, in which case it defaults to "1".
 static const char* const kOrtSessionOptionsDisableQuantQDQ = "session.disable_quant_qdq";
 
 // It controls whether to enable Double QDQ remover and Identical Children Consolidation
 // "0": not to disable. ORT does remove the middle 2 Nodes from a Q->(QD->Q)->QD pairs
 // "1": disable. ORT doesn't remove the middle 2 Nodes from a Q->(QD->Q)->QD pairs
 // Its default value is "0"
 static const char* const kOrtSessionOptionsDisableDoubleQDQRemover = "session.disable_double_qdq_remover";
 
 // If set to "1", enables the removal of QuantizeLinear/DequantizeLinear node pairs once all QDQ handling has been
 // completed. e.g. If after all QDQ handling has completed and we have -> FloatOp -> Q -> DQ -> FloatOp -> the
 // Q -> DQ could potentially be removed. This will provide a performance benefit by avoiding going from float to
 // 8-bit and back to float, but could impact accuracy. The impact on accuracy will be model specific and depend on
 // other factors like whether the model was created using Quantization Aware Training or Post Training Quantization.
 // As such, it's best to test to determine if enabling this works well for your scenario.
 // The default value is "0"
 // Available since version 1.11.
 static const char* const kOrtSessionOptionsEnableQuantQDQCleanup = "session.enable_quant_qdq_cleanup";
 
 // Enable or disable gelu approximation in graph optimization. "0": disable; "1": enable. The default is "0".
 // GeluApproximation has side effects which may change the inference results. It is disabled by default due to this.
 static const char* const kOrtSessionOptionsEnableGeluApproximation = "optimization.enable_gelu_approximation";
 
 // This setting controls whether to enable AheadOfTime function inlining.
 // AOT function inlining examines the graph and attempts to inline as many locally defined functions in the model
 // as possible with the help of enabled execution providers.
 // This can reduce the number of function calls and improve performance because it is done before
 // Level1 optimizers and constant folding. However, under some circumstances, when the EPs are not available,
 // one can disable the AOT inlining, produce an optimized model and postpone AOT until run time.
 // "0": enable; "1": disable.
 // Its default value is "0".
 static const char* const kOrtSessionOptionsDisableAheadOfTimeFunctionInlining = "session.disable_aot_function_inlining";
 
 #ifdef ENABLE_TRAINING
 // Specifies a path of the file containing a list of memory optimization configurations.
 // The value should be a string indicating the file path of the config file.
 // The content of the config file is a JSON struct like this:
 // [
 //   "Gelu+Cast+:1:0",
 //   "Dropout+:1:1"
 // ]
 // Taking the example of "Gelu+Cast+:1:0",
 // > "Gelu+Cast+" is the subgraph string, a valid "subgraph string" should be one subgraph representation
 //    output by ORT graph transformations.
 // > "1" is "optimization strategy", valid values: 0 - disabled, 1 - recompute.
 // > "0" is "number of subgraph to apply" which is used to control how many subgraphs to apply optimization,
 //    to avoid "oversaving" the memory.
 static const char* const kOrtSessionOptionsMemoryOptimizerApplyConfig = "optimization.memory_optimizer_config";
 
 // Specifies the config for detecting subgraphs for memory footprint reduction.
 // The value should be a string contains int separated using commas. The default value is "0:0".
 static const char* const kOrtSessionOptionsMemoryOptimizerProbeConfig = "optimization.enable_memory_probe_recompute_config";
 #endif
 
 // This setting if set should contain a comma separated list of optimizers names that should be disabled.
 // Optimizers may take time to execute and affect model loading time. If you feel that a specific optimizer
 // does not provider runtime benefits, but affects your model loading time you may disable it using this config
 // entry. This option is not enabled in ORT_MINIMAL_BUILD build.
 // A list of optimizes is available in onnxruntime/core/optimizer/graph_transformer_utils.cc
 //
 // Default is an empty string which means no optimizers are disabled.
 static const char* const kOrtSessionOptionsDisableSpecifiedOptimizers = "optimization.disable_specified_optimizers";
 
 // Enable or disable using device allocator for allocating initialized tensor memory. "1": enable; "0": disable. The default is "0".
 // Using device allocators means the memory allocation is made using malloc/new.
 static const char* const kOrtSessionOptionsUseDeviceAllocatorForInitializers = "session.use_device_allocator_for_initializers";
 
 // Configure whether to allow the inter_op/intra_op threads spinning a number of times before blocking
 // "0": thread will block if found no job to run
 // "1": default, thread will spin a number of times before blocking
 static const char* const kOrtSessionOptionsConfigAllowInterOpSpinning = "session.inter_op.allow_spinning";
 static const char* const kOrtSessionOptionsConfigAllowIntraOpSpinning = "session.intra_op.allow_spinning";
 
 // Key for using model bytes directly for ORT format
 // If a session is created using an input byte array contains the ORT format model data,
 // By default we will copy the model bytes at the time of session creation to ensure the model bytes
 // buffer is valid.
 // Setting this option to "1" will disable copy the model bytes, and use the model bytes directly. The caller
 // has to guarantee that the model bytes are valid until the ORT session using the model bytes is destroyed.
 static const char* const kOrtSessionOptionsConfigUseORTModelBytesDirectly = "session.use_ort_model_bytes_directly";
 
 /// <summary>
 /// Key for using the ORT format model flatbuffer bytes directly for initializers.
 /// This avoids copying the bytes and reduces peak memory usage during model loading and initialization.
 /// Requires `session.use_ort_model_bytes_directly` to be true.
 /// If set, the flatbuffer bytes provided when creating the InferenceSession MUST remain valid for the entire
 /// duration of the InferenceSession.
 /// </summary>
 static const char* const kOrtSessionOptionsConfigUseORTModelBytesForInitializers =
     "session.use_ort_model_bytes_for_initializers";
 
 // This should only be specified when exporting an ORT format model for use on a different platform.
 // If the ORT format model will be used on ARM platforms set to "1". For other platforms set to "0"
 // Available since version 1.11.
 static const char* const kOrtSessionOptionsQDQIsInt8Allowed = "session.qdqisint8allowed";
 
 // x64 SSE4.1/AVX2/AVX512(with no VNNI) has overflow problem with quantizied matrix multiplication with U8S8.
 // To avoid this we need to use slower U8U8 matrix multiplication instead. This option, if
 // turned on, use slower U8U8 matrix multiplications. Only effective with AVX2 or AVX512
 // platforms.
 static const char* const kOrtSessionOptionsAvx2PrecisionMode = "session.x64quantprecision";
 
 // Specifies how minimal build graph optimizations are handled in a full build.
 // These optimizations are at the extended level or higher.
 // Possible values and their effects are:
 // "save": Save runtime optimizations when saving an ORT format model.
 // "apply": Only apply optimizations available in a minimal build.
 // ""/<unspecified>: Apply optimizations available in a full build.
 // Available since version 1.11.
 static const char* const kOrtSessionOptionsConfigMinimalBuildOptimizations =
     "optimization.minimal_build_optimizations";
 
 // Note: The options specific to an EP should be specified prior to appending that EP to the session options object in
 // order for them to take effect.
 
 // Specifies a list of stop op types. Nodes of a type in the stop op types and nodes downstream from them will not be
 // run by the NNAPI EP.
 // The value should be a ","-delimited list of op types. For example, "Add,Sub".
 // If not specified, the default set of stop ops is used. To specify an empty stop ops types list and disable stop op
 // exclusion, set the value to "".
 static const char* const kOrtSessionOptionsConfigNnapiEpPartitioningStopOps = "ep.nnapi.partitioning_stop_ops";
 
 // Enabling dynamic block-sizing for multithreading.
 // With a positive value, thread pool will split a task of N iterations to blocks of size starting from:
 // N / (num_of_threads * dynamic_block_base)
 // As execution progresses, the size will decrease according to the diminishing residual of N,
 // meaning the task will be distributed in smaller granularity for better parallelism.
 // For some models, it helps to reduce the variance of E2E inference latency and boost performance.
 // The feature will not function by default, specify any positive integer, e.g. "4", to enable it.
 // Available since version 1.11.
 static const char* const kOrtSessionOptionsConfigDynamicBlockBase = "session.dynamic_block_base";
 
 // This option allows to decrease CPU usage between infrequent
 // requests and forces any TP threads spinning stop immediately when the last of
 // concurrent Run() call returns.
 // Spinning is restarted on the next Run() call.
 // Applies only to internal thread-pools
 static const char* const kOrtSessionOptionsConfigForceSpinningStop = "session.force_spinning_stop";
 
 // "1": all inconsistencies encountered during shape and type inference
 // will result in failures.
 // "0": in some cases warnings will be logged but processing will continue. The default.
 // May be useful to expose bugs in models.
 static const char* const kOrtSessionOptionsConfigStrictShapeTypeInference = "session.strict_shape_type_inference";
 
 // "1": every model using a more recent opset than the latest released one will fail
 // "0": the model may or may not work if onnxruntime cannot find an implementation, this option
 // is used for development purpose.
 static const char* const kOrtSessionOptionsConfigStrictAllowReleasedOpsetsOnly = "session.allow_released_opsets_only";
 
 // The file saves configuration for partitioning node among logic streams
 static const char* const kNodePartitionConfigFile = "session.node_partition_config_file";
 
 // This Option allows setting affinities for intra op threads.
 // Affinity string follows format:
 // logical_processor_id,logical_processor_id;logical_processor_id,logical_processor_id
 // Semicolon isolates configurations among threads, while comma split processors where ith thread expected to attach to.
 // e.g.1,2,3;4,5
 // specifies affinities for two threads, with the 1st thread attach to the 1st, 2nd, and 3rd processor, and 2nd thread to the 4th and 5th.
 // To ease the configuration, an "interval" is also allowed:
 // e.g. 1-8;8-16;17-24
 // orders that the 1st thread runs on first eight processors, 2nd thread runs on next eight processors, and so forth.
 // Note:
 // 1. Once set, the number of thread affinities must equal to intra_op_num_threads - 1, since ort does not set affinity on the main thread which
 //    is started and managed by the calling app;
 // 2. For windows, ort will infer the group id from a logical processor id, for example, assuming there are two groups with each has 64 logical processors,
 //    an id of 64 will be inferred as the last processor of the 1st group, while 65 will be interpreted as the 1st processor of the second group.
 //    Hence 64-65 is an invalid configuration, because a windows thread cannot be attached to processors across group boundary.
 static const char* const kOrtSessionOptionsConfigIntraOpThreadAffinities = "session.intra_op_thread_affinities";
 
 // This option will dump out the model to assist debugging any issues with layout transformation,
 // and is primarily intended for developer usage. It is only relevant if an execution provider that requests
 // NHWC layout is enabled such as NNAPI, XNNPACK or QNN.
 //
 // Default is off. Set to "1" to enable.
 //
 // If modified by layout transformation the model will be dumped after these steps:
 //   1) insertion of the layout transformation Transpose nodes
 //   2) after those are optimized using the transpose optimizer,
 //   3) after the L1 transformers are applied to the updated graph.
 // The model will be saved to filename post_layout_transform_step_<step_number>.onnx.
 static const char* const kDebugLayoutTransformation = "session.debug_layout_transformation";
 
 // Graph nodes that are not supported by the execution providers (EPs) explicitly added to the session are
 // assigned (i.e., "fallback") to the CPU EP by default.
 //
 // This option allows the user to disable the fallback of unsupported graph nodes to the CPU EP.
 // If this option is set to "1", session creation will fail if the execution providers other than the CPU EP cannot
 // fully support all of the nodes in the graph.
 //
 // It is invalid to set this option and explicitly add the CPU EP to the session. In this case, session creation
 // will also fail with an error.
 //
 // Option values:
 // - "0": CPU EP fallback is not disabled. [DEFAULT]
 // - "1": CPU EP fallback is disabled.
 static const char* const kOrtSessionOptionsDisableCPUEPFallback = "session.disable_cpu_ep_fallback";
 
 // Use this config when serializing a large model after optimization to specify an external initializers file
 static const char* const kOrtSessionOptionsOptimizedModelExternalInitializersFileName =
     "session.optimized_model_external_initializers_file_name";
 
 // Use this config to control the minimum size of the initializer when externalizing it during serialization
 static const char* const kOrtSessionOptionsOptimizedModelExternalInitializersMinSizeInBytes =
     "session.optimized_model_external_initializers_min_size_in_bytes";
 
 // Enable EP context feature to dump the partitioned graph which includes the EP context into Onnx file.
 // The dumped Onnx model with EP context can be used for future inference to avoid the EP graph partitioning/compile overhead.
 // "0": disable. (default)
 // "1": enable.
 static const char* const kOrtSessionOptionEpContextEnable = "ep.context_enable";
 
 // Specify the file path for the Onnx model which has EP context.
 // Default to original_file_name_ctx.onnx if not specified
 static const char* const kOrtSessionOptionEpContextFilePath = "ep.context_file_path";
 
 // Flag to specify whether to dump the EP context into the Onnx model.
 // "0": dump the EP context into separate file, keep the file name in the Onnx model.
 // "1": dump the EP context into the Onnx model. (default).
 static const char* const kOrtSessionOptionEpContextEmbedMode = "ep.context_embed_mode";
 
 // Specify the EPContext node name prefix to make it unique
 // in case user need to merge/connect multiple EPContext nodes in one model
 static const char* const kOrtSessionOptionEpContextNodeNamePrefix = "ep.context_node_name_prefix";
 
 // Share EP related resources across EPs
 static const char* const kOrtSessionOptionShareEpContexts = "ep.share_ep_contexts";
 
 // Gemm fastmath mode provides fp32 gemm acceleration with bfloat16 based matmul.
 // Option values:
 // - "0": Gemm FastMath mode is not enabled. [DEFAULT]
 // - "1": Gemm FastMath mode is enabled.
 static const char* const kOrtSessionOptionsMlasGemmFastMathArm64Bfloat16 = "mlas.enable_gemm_fastmath_arm64_bfloat16";
 
 // When converting DQ + MatMul -> MatMulNBits, the accuracy level of the MatMulNBits is controlled by this option.
 // Refer to MatMulNBits op schema for more details.
 // If not provided, default is 4.
 static const char* const kOrtSessionOptionsQDQMatMulNBitsAccuracyLevel = "session.qdq_matmulnbits_accuracy_level";
 
 // THIS OPTION IS NOT A REGULAR SESSION OPTION SINCE IT CAN BE MODIFIED AT ANY TIME
 // Meant to be used with SetEpDynamicOptions
 // Specify the type of workload for this session.
 // “Default”: OS determines the scheduling priority and processor performance to service this workload. [Default]
 // “Efficient”: OS treats this workload is efficiency oriented with low scheduling priority and efficient processor performance.
 static const char* const kOrtEpDynamicOptionsWorkloadType = "ep.dynamic.workload_type";

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