Kiss, Istvan
ed5a6441a9
* Update docs 2025 03 31
- Docs: remove virtual_rocr.rst
- Fix documentation warnings
- Reformat HIP RTC
- Docs: Refactor HIP porting guide
- Docs: Expand HIP porting guide and CUDA driver porting guide
- Minor fix
- Docs: Update environment variables file
- Bump rocm-docs-core[api_reference] from 1.15.0 to 1.17.0 in /docs/sphinx
- Docs: Update FP8 page to show both FP8 and FP16 types
- Bump sphinxcontrib-doxylink from 1.12.4 to 1.13.0 in /docs/sphinx
- Bumps [rocm-docs-core[api_reference]](https://github.com/ROCm/rocm-docs-core) from 1.17.0 to 1.17.1.
- Remove external link
- Update programming model
- Bump rocm-docs-core[api_reference] from 1.17.1 to 1.18.1 in /docs/sphinx
- Docs: Add page for Complex Math API
- Docs: Add page about HIP error codes
- Update docs: the compilation cache is enabled by default
- Fix fns32 function mask type in doc
* Bump rocm-docs-core[api_reference] from 1.18.1 to 1.18.2 in /docs/sphinx
Bumps [rocm-docs-core[api_reference]](https://github.com/ROCm/rocm-docs-core) from 1.18.1 to 1.18.2.
- [Release notes](https://github.com/ROCm/rocm-docs-core/releases)
- [Changelog](https://github.com/ROCm/rocm-docs-core/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/ROCm/rocm-docs-core/compare/v1.18.1...v1.18.2)
---
updated-dependencies:
- dependency-name: rocm-docs-core[api_reference]
dependency-version: 1.18.2
dependency-type: direct:production
update-type: version-update:semver-patch
* Fix readme link
* Docs: Fix verbose paths generated by doxygen
* Handle git ssh in docs conf.py
[ROCm/hip commit: d0cf32a63a]
279 строки
8.9 KiB
ReStructuredText
279 строки
8.9 KiB
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.. meta::
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:description: HIP environment variables
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:keywords: AMD, HIP, environment variables, environment
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HIP GPU isolation variables
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--------------------------------------------------------------------------------
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The GPU isolation environment variables in HIP are collected in the following table.
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.. _hip-env-isolation:
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.. list-table::
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:header-rows: 1
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:widths: 70,30
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* - **Environment variable**
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- **Value**
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* - | ``ROCR_VISIBLE_DEVICES``
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| A list of device indices or UUIDs that will be exposed to applications.
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- Example: ``0,GPU-DEADBEEFDEADBEEF``
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* - | ``GPU_DEVICE_ORDINAL``
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| Devices indices exposed to OpenCL and HIP applications.
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- Example: ``0,2``
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* - | ``HIP_VISIBLE_DEVICES`` or ``CUDA_VISIBLE_DEVICES``
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| Device indices exposed to HIP applications.
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- Example: ``0,2``
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HIP profiling variables
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--------------------------------------------------------------------------------
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The profiling environment variables in HIP are collected in the following table.
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.. _hip-env-prof:
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.. list-table::
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:header-rows: 1
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:widths: 70,30
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* - **Environment variable**
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- **Value**
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* - | ``HSA_CU_MASK``
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| Sets the mask on a lower level of queue creation in the driver,
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| this mask will also be set for queues being profiled.
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- Example: ``1:0-8``
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* - | ``ROC_GLOBAL_CU_MASK``
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| Sets the mask on queues created by the HIP or the OpenCL runtimes,
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| this mask will also be set for queues being profiled.
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- Example: ``0xf``, enables only 4 CUs
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* - | ``HIP_FORCE_QUEUE_PROFILING``
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| Used to run the app as if it were run in rocprof. Forces command queue
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| profiling on by default.
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- | 0: Disable
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| 1: Enable
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HIP debug variables
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--------------------------------------------------------------------------------
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The debugging environment variables in HIP are collected in the following table.
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.. _hip-env-debug:
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.. list-table::
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:header-rows: 1
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:widths: 35,14,51
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* - **Environment variable**
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- **Default value**
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- **Value**
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* - | ``AMD_LOG_LEVEL``
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| Enables HIP log on various level.
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- ``0``
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- | 0: Disable log.
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| 1: Enables error logs.
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| 2: Enables warning logs next to lower-level logs.
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| 3: Enables information logs next to lower-level logs.
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| 4: Enables debug logs next to lower-level logs.
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| 5: Enables debug extra logs next to lower-level logs.
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* - | ``AMD_LOG_LEVEL_FILE``
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| Sets output file for ``AMD_LOG_LEVEL``.
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- stderr output
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-
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* - | ``AMD_LOG_MASK``
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| Specifies HIP log filters. Here is the ` complete list of log masks <https://github.com/ROCm/clr/blob/develop/rocclr/utils/debug.hpp#L40>`_.
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- ``0x7FFFFFFF``
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- | 0x1: Log API calls.
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| 0x2: Kernel and copy commands and barriers.
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| 0x4: Synchronization and waiting for commands to finish.
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| 0x8: Decode and display AQL packets.
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| 0x10: Queue commands and queue contents.
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| 0x20: Signal creation, allocation, pool.
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| 0x40: Locks and thread-safety code.
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| 0x80: Kernel creations and arguments, etc.
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| 0x100: Copy debug.
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| 0x200: Detailed copy debug.
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| 0x400: Resource allocation, performance-impacting events.
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| 0x800: Initialization and shutdown.
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| 0x1000: Misc debug, not yet classified.
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| 0x2000: Show raw bytes of AQL packet.
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| 0x4000: Show code creation debug.
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| 0x8000: More detailed command info, including barrier commands.
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| 0x10000: Log message location.
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| 0x20000: Memory allocation.
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| 0x40000: Memory pool allocation, including memory in graphs.
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| 0x80000: Timestamp details.
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| 0xFFFFFFFF: Log always even mask flag is zero.
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* - | ``HIP_LAUNCH_BLOCKING``
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| Used for serialization on kernel execution.
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- ``0``
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- | 0: Disable. Kernel executes normally.
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| 1: Enable. Serializes kernel enqueue, behaves the same as ``AMD_SERIALIZE_KERNEL``.
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* - | ``HIP_VISIBLE_DEVICES`` (or ``CUDA_VISIBLE_DEVICES``)
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| Only devices whose index is present in the sequence are visible to HIP
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- Unset by default.
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- 0,1,2: Depending on the number of devices on the system.
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* - | ``GPU_DUMP_CODE_OBJECT``
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| Dump code object.
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- ``0``
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- | 0: Disable
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| 1: Enable
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* - | ``AMD_SERIALIZE_KERNEL``
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| Serialize kernel enqueue.
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- ``0``
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- | 0: Disable
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| 1: Wait for completion before enqueue.
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| 2: Wait for completion after enqueue.
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| 3: Both
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* - | ``AMD_SERIALIZE_COPY``
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| Serialize copies
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- ``0``
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- | 0: Disable
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| 1: Wait for completion before enqueue.
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| 2: Wait for completion after enqueue.
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| 3: Both
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* - | ``AMD_DIRECT_DISPATCH``
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| Enable direct kernel dispatch (Currently for Linux; under development for Windows).
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- ``1``
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- | 0: Disable
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| 1: Enable
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* - | ``GPU_MAX_HW_QUEUES``
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| The maximum number of hardware queues allocated per device.
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- ``4``
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- The variable controls how many independent hardware queues HIP runtime can create per process,
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per device. If an application allocates more HIP streams than this number, then HIP runtime reuses
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the same hardware queues for the new streams in a round-robin manner. Note that this maximum
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number does not apply to hardware queues that are created for CU-masked HIP streams, or
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cooperative queues for HIP Cooperative Groups (single queue per device).
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HIP memory management related variables
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--------------------------------------------------------------------------------
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The memory management related environment variables in HIP are collected in the
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following table.
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.. _hip-env-memory:
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.. list-table::
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:header-rows: 1
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:widths: 35,14,51
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* - **Environment variable**
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- **Default value**
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- **Value**
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* - | ``HIP_HIDDEN_FREE_MEM``
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| Amount of memory to hide from the free memory reported by hipMemGetInfo.
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- ``0``
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- | 0: Disable
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| Unit: megabyte (MB)
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* - | ``HIP_HOST_COHERENT``
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| Specifies if the memory is coherent between the host and GPU in ``hipHostMalloc``.
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- ``0``
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- | 0: Memory is not coherent.
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| 1: Memory is coherent.
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| Environment variable has effect, if the following conditions are statisfied:
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| - One of the ``hipHostMallocDefault``, ``hipHostMallocPortable``, ``hipHostMallocWriteCombined`` or ``hipHostMallocNumaUser`` flag set to 1.
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| - ``hipHostMallocCoherent``, ``hipHostMallocNonCoherent`` and ``hipHostMallocMapped`` flags set to 0.
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* - | ``HIP_INITIAL_DM_SIZE``
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| Set initial heap size for device malloc.
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- ``8388608``
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- | Unit: Byte
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| The default value corresponds to 8 MB.
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* - | ``HIP_MEM_POOL_SUPPORT``
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| Enables memory pool support in HIP.
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- ``0``
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- | 0: Disable
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| 1: Enable
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* - | ``HIP_MEM_POOL_USE_VM``
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| Enables memory pool support in HIP.
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- | ``0``: other OS
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| ``1``: Windows
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- | 0: Disable
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| 1: Enable
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* - | ``HIP_VMEM_MANAGE_SUPPORT``
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| Virtual Memory Management Support.
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- ``1``
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- | 0: Disable
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| 1: Enable
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* - | ``GPU_MAX_HEAP_SIZE``
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| Set maximum size of the GPU heap to % of board memory.
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- ``100``
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- | Unit: Percentage
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* - | ``GPU_MAX_REMOTE_MEM_SIZE``
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| Maximum size that allows device memory substitution with system.
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- ``2``
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- | Unit: kilobyte (KB)
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* - | ``GPU_NUM_MEM_DEPENDENCY``
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| Number of memory objects for dependency tracking.
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- ``256``
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-
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* - | ``GPU_STREAMOPS_CP_WAIT``
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| Force the stream memory operation to wait on CP.
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- ``0``
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- | 0: Disable
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| 1: Enable
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* - | ``HSA_LOCAL_MEMORY_ENABLE``
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| Enable HSA device local memory usage.
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- ``1``
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- | 0: Disable
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| 1: Enable
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* - | ``PAL_ALWAYS_RESIDENT``
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| Force memory resources to become resident at allocation time.
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- ``0``
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- | 0: Disable
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| 1: Enable
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* - | ``PAL_PREPINNED_MEMORY_SIZE``
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| Size of prepinned memory.
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- ``64``
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- | Unit: kilobyte (KB)
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* - | ``REMOTE_ALLOC``
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| Use remote memory for the global heap allocation.
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- ``0``
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- | 0: Disable
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| 1: Enable
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HIP miscellaneous variables
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--------------------------------------------------------------------------------
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The following table lists environment variables that are useful but relate to
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different features in HIP.
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.. _hip-env-other:
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.. list-table::
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:header-rows: 1
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:widths: 35,14,51
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* - **Environment variable**
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- **Default value**
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- **Value**
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* - | ``HIPRTC_COMPILE_OPTIONS_APPEND``
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| Sets compile options needed for ``hiprtc`` compilation.
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- None
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- ``--gpu-architecture=gfx906:sramecc+:xnack``, ``-fgpu-rdc``
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