GPUOptions.Builder

genel statik son sınıf GPUOptions.Builder

Protobuf tipi tensorflow.GPUOptions

Genel Yöntemler

GPUOptions.Builder
addRepeatedField (com.google.protobuf.Descriptors.FieldDescriptor alanı, Nesne değeri)
GPUSeçenekleri
GPUSeçenekleri
GPUOptions.Builder
GPUOptions.Builder
clearAllocatorType ()
 The type of GPU allocation strategy to use.
GPUOptions.Builder
clearAllowGrowth ()
 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
GPUOptions.Builder
clearDeferredDeletionBytes ()
 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.
GPUOptions.Builder
clearDeneysel ()
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.Builder
clearField (com.google.protobuf.Descriptors.FieldDescriptor alanı)
GPUOptions.Builder
clearForceGpu Uyumlu ()
 Force all tensors to be gpu_compatible.
GPUOptions.Builder
clearOneof (com.google.protobuf.Descriptors.OneofDescriptor oneof)
GPUOptions.Builder
clearPerProcessGpuMemoryFraction ()
 Fraction of the available GPU memory to allocate for each process.
GPUOptions.Builder
clearPollingActiveDelayUsecs ()
 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.
GPUOptions.Builder
clearPollingInactiveDelayMsecs ()
 This field is deprecated and ignored.
GPUOptions.Builder
clearVisibleDeviceList ()
 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.
GPUOptions.Builder
klon ()
Sicim
getAllocatorType ()
 The type of GPU allocation strategy to use.
com.google.protobuf.ByteString
getAllocatorTypeBytes ()
 The type of GPU allocation strategy to use.
boolean
getAllowGrowth ()
 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
GPUSeçenekleri
uzun
getDeferredDeletionBytes ()
 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.
final statik com.google.protobuf.Descriptors.Descriptor
com.google.protobuf.Descriptors.Descriptor
GPUOptions.Deneysel
getDeneysel ()
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.Experimental.Builder
getExperimentalBuilder ()
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.ExperimentalOrBuilder
getExperimentalOrBuilder ()
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
boolean
getForceGpuCompatible ()
 Force all tensors to be gpu_compatible.
çift
getPerProcessGpuMemoryFraction ()
 Fraction of the available GPU memory to allocate for each process.
int
getPollingActiveDelayUsecs ()
 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.
int
getPollingInactiveDelayMsecs ()
 This field is deprecated and ignored.
Sicim
getVisibleDeviceList ()
 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.
com.google.protobuf.ByteString
getVisibleDeviceListBytes ()
 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.
boolean
vardırDeneysel ()
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
son boole değeri
GPUOptions.Builder
mergeExperimental ( GPUOptions.Experimental değer)
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.Builder
mergeFrom (com.google.protobuf.Message other)
GPUOptions.Builder
mergeFrom (com.google.protobuf.CodedInputStream girişi, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
son GPUOptions.Builder
mergeUnknownFields (com.google.protobuf.UnknownFieldSet bilinmiyorFields)
GPUOptions.Builder
setAllocatorType (Dize değeri)
 The type of GPU allocation strategy to use.
GPUOptions.Builder
setAllocatorTypeBytes (com.google.protobuf.ByteString değeri)
 The type of GPU allocation strategy to use.
GPUOptions.Builder
setAllowGrowth (boole değeri)
 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
GPUOptions.Builder
setDeferredDeletionBytes (uzun değer)
 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.
GPUOptions.Builder
setExperimental ( GPUOptions.Experimental.Builder builderForValue)
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.Builder
setExperimental ( GPUOptions.Experimental değer)
 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
GPUOptions.Builder
setField (com.google.protobuf.Descriptors.FieldDescriptor alanı, Nesne değeri)
GPUOptions.Builder
setForceGpuCompatible (boole değeri)
 Force all tensors to be gpu_compatible.
GPUOptions.Builder
setPerProcessGpuMemoryFraction (çift değer)
 Fraction of the available GPU memory to allocate for each process.
GPUOptions.Builder
setPollingActiveDelayUsecs (int değeri)
 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.
GPUOptions.Builder
setPollingInactiveDelayMsecs (int değeri)
 This field is deprecated and ignored.
GPUOptions.Builder
setRepeatedField (com.google.protobuf.Descriptors.FieldDescriptor alanı, int dizini, Nesne değeri)
son GPUOptions.Builder
setUnknownFields (com.google.protobuf.UnknownFieldSet bilinmeyenFields)
GPUOptions.Builder
setVisibleDeviceList (Dize değeri)
 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.
GPUOptions.Builder
setVisibleDeviceListBytes (com.google.protobuf.ByteString değeri)
 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.

Kalıtsal Yöntemler

Genel Yöntemler

public GPUOptions.Builder addRepeatedField (com.google.protobuf.Descriptors.FieldDescriptor alanı, Nesne değeri)

genel GPUSeçenekleri derlemesi ()

genel GPUSeçenekleri buildPartial ()

genel GPUOptions.Builder clear ()

genel GPUOptions.Builder clearAllocatorType ()

 The type of GPU allocation strategy to use.
 Allowed values:
 "": The empty string (default) uses a system-chosen default
     which may change over time.
 "BFC": A "Best-fit with coalescing" algorithm, simplified from a
        version of dlmalloc.
 
string allocator_type = 2;

genel GPUOptions.Builder clearAllowGrowth ()

 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
 
bool allow_growth = 4;

genel GPUOptions.Builder clearDeferredDeletionBytes ()

 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.  If 0, the system chooses
 a reasonable default (several MBs).
 
int64 deferred_deletion_bytes = 3;

genel GPUOptions.Builder clearExperimental ()

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel GPUOptions.Builder clearField (com.google.protobuf.Descriptors.FieldDescriptor alanı)

genel GPUOptions.Builder clearForceGpuCompatible ()

 Force all tensors to be gpu_compatible. On a GPU-enabled TensorFlow,
 enabling this option forces all CPU tensors to be allocated with Cuda
 pinned memory. Normally, TensorFlow will infer which tensors should be
 allocated as the pinned memory. But in case where the inference is
 incomplete, this option can significantly speed up the cross-device memory
 copy performance as long as it fits the memory.
 Note that this option is not something that should be
 enabled by default for unknown or very large models, since all Cuda pinned
 memory is unpageable, having too much pinned memory might negatively impact
 the overall host system performance.
 
bool force_gpu_compatible = 8;

genel GPUOptions.Builder clearOneof (com.google.protobuf.Descriptors.OneofDescriptor oneof)

genel GPUOptions.Builder clearPerProcessGpuMemoryFraction ()

 Fraction of the available GPU memory to allocate for each process.
 1 means to allocate all of the GPU memory, 0.5 means the process
 allocates up to ~50% of the available GPU memory.
 GPU memory is pre-allocated unless the allow_growth option is enabled.
 If greater than 1.0, uses CUDA unified memory to potentially oversubscribe
 the amount of memory available on the GPU device by using host memory as a
 swap space. Accessing memory not available on the device will be
 significantly slower as that would require memory transfer between the host
 and the device. Options to reduce the memory requirement should be
 considered before enabling this option as this may come with a negative
 performance impact. Oversubscription using the unified memory requires
 Pascal class or newer GPUs and it is currently only supported on the Linux
 operating system. See
 https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#um-requirements
 for the detailed requirements.
 
double per_process_gpu_memory_fraction = 1;

genel GPUOptions.Builder clearPollingActiveDelayUsecs ()

 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.  If value is not
 set or set to 0, gets set to a non-zero default.
 
int32 polling_active_delay_usecs = 6;

genel GPUOptions.Builder clearPollingInactiveDelayMsecs ()

 This field is deprecated and ignored.
 
int32 polling_inactive_delay_msecs = 7;

genel GPUOptions.Builder clearVisibleDeviceList ()

 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.  For example, if TensorFlow
 can see 8 GPU devices in the process, and one wanted to map
 visible GPU devices 5 and 3 as "/device:GPU:0", and "/device:GPU:1",
 then one would specify this field as "5,3".  This field is similar in
 spirit to the CUDA_VISIBLE_DEVICES environment variable, except
 it applies to the visible GPU devices in the process.
 NOTE:
 1. The GPU driver provides the process with the visible GPUs
    in an order which is not guaranteed to have any correlation to
    the *physical* GPU id in the machine.  This field is used for
    remapping "visible" to "virtual", which means this operates only
    after the process starts.  Users are required to use vendor
    specific mechanisms (e.g., CUDA_VISIBLE_DEVICES) to control the
    physical to visible device mapping prior to invoking TensorFlow.
 2. In the code, the ids in this list are also called "platform GPU id"s,
    and the 'virtual' ids of GPU devices (i.e. the ids in the device
    name "/device:GPU:<id>") are also called "TF GPU id"s. Please
    refer to third_party/tensorflow/core/common_runtime/gpu/gpu_id.h
    for more information.
 
string visible_device_list = 5;

genel GPUOptions.Builder klonu ()

public String getAllocatorType ()

 The type of GPU allocation strategy to use.
 Allowed values:
 "": The empty string (default) uses a system-chosen default
     which may change over time.
 "BFC": A "Best-fit with coalescing" algorithm, simplified from a
        version of dlmalloc.
 
string allocator_type = 2;

public com.google.protobuf.ByteString getAllocatorTypeBytes ()

 The type of GPU allocation strategy to use.
 Allowed values:
 "": The empty string (default) uses a system-chosen default
     which may change over time.
 "BFC": A "Best-fit with coalescing" algorithm, simplified from a
        version of dlmalloc.
 
string allocator_type = 2;

genel boolean getAllowGrowth ()

 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
 
bool allow_growth = 4;

genel GPUOptions getDefaultInstanceForType ()

genel uzun getDeferredDeletionBytes ()

 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.  If 0, the system chooses
 a reasonable default (several MBs).
 
int64 deferred_deletion_bytes = 3;

public static final com.google.protobuf.Descriptors.Descriptor getDescriptor ()

public com.google.protobuf.Descriptors.Descriptor getDescriptorForType ()

genel GPUOptions.Experimental getExperimental ()

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel GPUOptions.Experimental.Builder getExperimentalBuilder ()

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel GPUOptions.ExperimentalOrBuilder getExperimentalOrBuilder ()

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel boolean getForceGpuCompatible ()

 Force all tensors to be gpu_compatible. On a GPU-enabled TensorFlow,
 enabling this option forces all CPU tensors to be allocated with Cuda
 pinned memory. Normally, TensorFlow will infer which tensors should be
 allocated as the pinned memory. But in case where the inference is
 incomplete, this option can significantly speed up the cross-device memory
 copy performance as long as it fits the memory.
 Note that this option is not something that should be
 enabled by default for unknown or very large models, since all Cuda pinned
 memory is unpageable, having too much pinned memory might negatively impact
 the overall host system performance.
 
bool force_gpu_compatible = 8;

genel çift getPerProcessGpuMemoryFraction ()

 Fraction of the available GPU memory to allocate for each process.
 1 means to allocate all of the GPU memory, 0.5 means the process
 allocates up to ~50% of the available GPU memory.
 GPU memory is pre-allocated unless the allow_growth option is enabled.
 If greater than 1.0, uses CUDA unified memory to potentially oversubscribe
 the amount of memory available on the GPU device by using host memory as a
 swap space. Accessing memory not available on the device will be
 significantly slower as that would require memory transfer between the host
 and the device. Options to reduce the memory requirement should be
 considered before enabling this option as this may come with a negative
 performance impact. Oversubscription using the unified memory requires
 Pascal class or newer GPUs and it is currently only supported on the Linux
 operating system. See
 https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#um-requirements
 for the detailed requirements.
 
double per_process_gpu_memory_fraction = 1;

public int getPollingActiveDelayUsecs ()

 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.  If value is not
 set or set to 0, gets set to a non-zero default.
 
int32 polling_active_delay_usecs = 6;

public int getPollingInactiveDelayMsecs ()

 This field is deprecated and ignored.
 
int32 polling_inactive_delay_msecs = 7;

public String getVisibleDeviceList ()

 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.  For example, if TensorFlow
 can see 8 GPU devices in the process, and one wanted to map
 visible GPU devices 5 and 3 as "/device:GPU:0", and "/device:GPU:1",
 then one would specify this field as "5,3".  This field is similar in
 spirit to the CUDA_VISIBLE_DEVICES environment variable, except
 it applies to the visible GPU devices in the process.
 NOTE:
 1. The GPU driver provides the process with the visible GPUs
    in an order which is not guaranteed to have any correlation to
    the *physical* GPU id in the machine.  This field is used for
    remapping "visible" to "virtual", which means this operates only
    after the process starts.  Users are required to use vendor
    specific mechanisms (e.g., CUDA_VISIBLE_DEVICES) to control the
    physical to visible device mapping prior to invoking TensorFlow.
 2. In the code, the ids in this list are also called "platform GPU id"s,
    and the 'virtual' ids of GPU devices (i.e. the ids in the device
    name "/device:GPU:<id>") are also called "TF GPU id"s. Please
    refer to third_party/tensorflow/core/common_runtime/gpu/gpu_id.h
    for more information.
 
string visible_device_list = 5;

public com.google.protobuf.ByteString getVisibleDeviceListBytes ()

 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.  For example, if TensorFlow
 can see 8 GPU devices in the process, and one wanted to map
 visible GPU devices 5 and 3 as "/device:GPU:0", and "/device:GPU:1",
 then one would specify this field as "5,3".  This field is similar in
 spirit to the CUDA_VISIBLE_DEVICES environment variable, except
 it applies to the visible GPU devices in the process.
 NOTE:
 1. The GPU driver provides the process with the visible GPUs
    in an order which is not guaranteed to have any correlation to
    the *physical* GPU id in the machine.  This field is used for
    remapping "visible" to "virtual", which means this operates only
    after the process starts.  Users are required to use vendor
    specific mechanisms (e.g., CUDA_VISIBLE_DEVICES) to control the
    physical to visible device mapping prior to invoking TensorFlow.
 2. In the code, the ids in this list are also called "platform GPU id"s,
    and the 'virtual' ids of GPU devices (i.e. the ids in the device
    name "/device:GPU:<id>") are also called "TF GPU id"s. Please
    refer to third_party/tensorflow/core/common_runtime/gpu/gpu_id.h
    for more information.
 
string visible_device_list = 5;

public boolean hasExperimental ()

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel final boolean isInitialized ()

public GPUOptions.Builder mergeExperimental ( GPUOptions.Experimental value)

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

genel GPUOptions.Builder mergeFrom (com.google.protobuf.Message other)

genel GPUOptions.Builder mergeFrom (com.google.protobuf.CodedInputStream girişi, com.google.protobuf.ExtensionRegistryLite extensionRegistry)

Atar
IO İstisnası

genel nihai GPUOptions.Builder mergeUnknownFields (com.google.protobuf.UnknownFieldSet bilinmiyorFields)

public GPUOptions.Builder setAllocatorType (Dize değeri)

 The type of GPU allocation strategy to use.
 Allowed values:
 "": The empty string (default) uses a system-chosen default
     which may change over time.
 "BFC": A "Best-fit with coalescing" algorithm, simplified from a
        version of dlmalloc.
 
string allocator_type = 2;

public GPUOptions.Builder setAllocatorTypeBytes (com.google.protobuf.ByteString değeri)

 The type of GPU allocation strategy to use.
 Allowed values:
 "": The empty string (default) uses a system-chosen default
     which may change over time.
 "BFC": A "Best-fit with coalescing" algorithm, simplified from a
        version of dlmalloc.
 
string allocator_type = 2;

public GPUOptions.Builder setAllowGrowth (boole değeri)

 If true, the allocator does not pre-allocate the entire specified
 GPU memory region, instead starting small and growing as needed.
 
bool allow_growth = 4;

public GPUOptions.Builder setDeferredDeletionBytes (uzun değer)

 Delay deletion of up to this many bytes to reduce the number of
 interactions with gpu driver code.  If 0, the system chooses
 a reasonable default (several MBs).
 
int64 deferred_deletion_bytes = 3;

genel GPUOptions.Builder setExperimental ( GPUOptions.Experimental.Builder builderForValue)

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

public GPUOptions.Builder setExperimental ( GPUOptions.Experimental value)

 Everything inside experimental is subject to change and is not subject
 to API stability guarantees in
 https://www.tensorflow.org/guide/version_compat.
 
.tensorflow.GPUOptions.Experimental experimental = 9;

public GPUOptions.Builder setField (com.google.protobuf.Descriptors.FieldDescriptor alanı, Nesne değeri)

public GPUOptions.Builder setForceGpuCompatible (boole değeri)

 Force all tensors to be gpu_compatible. On a GPU-enabled TensorFlow,
 enabling this option forces all CPU tensors to be allocated with Cuda
 pinned memory. Normally, TensorFlow will infer which tensors should be
 allocated as the pinned memory. But in case where the inference is
 incomplete, this option can significantly speed up the cross-device memory
 copy performance as long as it fits the memory.
 Note that this option is not something that should be
 enabled by default for unknown or very large models, since all Cuda pinned
 memory is unpageable, having too much pinned memory might negatively impact
 the overall host system performance.
 
bool force_gpu_compatible = 8;

public GPUOptions.Builder setPerProcessGpuMemoryFraction (çift değer)

 Fraction of the available GPU memory to allocate for each process.
 1 means to allocate all of the GPU memory, 0.5 means the process
 allocates up to ~50% of the available GPU memory.
 GPU memory is pre-allocated unless the allow_growth option is enabled.
 If greater than 1.0, uses CUDA unified memory to potentially oversubscribe
 the amount of memory available on the GPU device by using host memory as a
 swap space. Accessing memory not available on the device will be
 significantly slower as that would require memory transfer between the host
 and the device. Options to reduce the memory requirement should be
 considered before enabling this option as this may come with a negative
 performance impact. Oversubscription using the unified memory requires
 Pascal class or newer GPUs and it is currently only supported on the Linux
 operating system. See
 https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#um-requirements
 for the detailed requirements.
 
double per_process_gpu_memory_fraction = 1;

public GPUOptions.Builder setPollingActiveDelayUsecs (int değeri)

 In the event polling loop sleep this many microseconds between
 PollEvents calls, when the queue is not empty.  If value is not
 set or set to 0, gets set to a non-zero default.
 
int32 polling_active_delay_usecs = 6;

public GPUOptions.Builder setPollingInactiveDelayMsecs (int değeri)

 This field is deprecated and ignored.
 
int32 polling_inactive_delay_msecs = 7;

public GPUOptions.Builder setRepeatedField (com.google.protobuf.Descriptors.FieldDescriptor alanı, int dizini, Nesne değeri)

genel nihai GPUOptions.Builder setUnknownFields (com.google.protobuf.UnknownFieldSet bilinmiyorFields)

public GPUOptions.Builder setVisibleDeviceList (Dize değeri)

 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.  For example, if TensorFlow
 can see 8 GPU devices in the process, and one wanted to map
 visible GPU devices 5 and 3 as "/device:GPU:0", and "/device:GPU:1",
 then one would specify this field as "5,3".  This field is similar in
 spirit to the CUDA_VISIBLE_DEVICES environment variable, except
 it applies to the visible GPU devices in the process.
 NOTE:
 1. The GPU driver provides the process with the visible GPUs
    in an order which is not guaranteed to have any correlation to
    the *physical* GPU id in the machine.  This field is used for
    remapping "visible" to "virtual", which means this operates only
    after the process starts.  Users are required to use vendor
    specific mechanisms (e.g., CUDA_VISIBLE_DEVICES) to control the
    physical to visible device mapping prior to invoking TensorFlow.
 2. In the code, the ids in this list are also called "platform GPU id"s,
    and the 'virtual' ids of GPU devices (i.e. the ids in the device
    name "/device:GPU:<id>") are also called "TF GPU id"s. Please
    refer to third_party/tensorflow/core/common_runtime/gpu/gpu_id.h
    for more information.
 
string visible_device_list = 5;

genel GPUOptions.Builder setVisibleDeviceListBytes (com.google.protobuf.ByteString değeri)

 A comma-separated list of GPU ids that determines the 'visible'
 to 'virtual' mapping of GPU devices.  For example, if TensorFlow
 can see 8 GPU devices in the process, and one wanted to map
 visible GPU devices 5 and 3 as "/device:GPU:0", and "/device:GPU:1",
 then one would specify this field as "5,3".  This field is similar in
 spirit to the CUDA_VISIBLE_DEVICES environment variable, except
 it applies to the visible GPU devices in the process.
 NOTE:
 1. The GPU driver provides the process with the visible GPUs
    in an order which is not guaranteed to have any correlation to
    the *physical* GPU id in the machine.  This field is used for
    remapping "visible" to "virtual", which means this operates only
    after the process starts.  Users are required to use vendor
    specific mechanisms (e.g., CUDA_VISIBLE_DEVICES) to control the
    physical to visible device mapping prior to invoking TensorFlow.
 2. In the code, the ids in this list are also called "platform GPU id"s,
    and the 'virtual' ids of GPU devices (i.e. the ids in the device
    name "/device:GPU:<id>") are also called "TF GPU id"s. Please
    refer to third_party/tensorflow/core/common_runtime/gpu/gpu_id.h
    for more information.
 
string visible_device_list = 5;