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Diffstat (limited to 'docs/user_guide/library.dox')
| -rw-r--r-- | docs/user_guide/library.dox | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/docs/user_guide/library.dox b/docs/user_guide/library.dox index 4b54abed1f..5a337c374b 100644 --- a/docs/user_guide/library.dox +++ b/docs/user_guide/library.dox @@ -1,5 +1,5 @@ /// -/// Copyright (c) 2017-2021, 2023 Arm Limited. +/// Copyright (c) 2017-2021, 2023-2024 Arm Limited. /// /// SPDX-License-Identifier: MIT /// @@ -568,9 +568,14 @@ The responsibilities of the operators can be summarized as follows: Selecting multi_isa when building Compute Library, will create a library that contains all the supported ISA features. Based on the CPU support, the appropriate kernel will be selected at runtime for execution. Currently this option is -supported in two configurations: (i) with armv8.2-a as the base architecture where all the supported ISA features are enabled and -(ii) with armv8-a as the base architecture where only a subset of ISA features (everything except FP16 vector arithmetic) -are enabled in the build. +supported in two configurations: (i) with armv8.2-a (ii) with armv8-a. In both cases all the supported ISA features are enabled +in the build. + +The arch option in a multi_isa build sets the minimum architecture required to run the resulting binary. +For example a multi_isa build for armv8-a will run on any armv8-a or later, when the binary is executed on a armv8.2-a device +it will use the additional cpu features present in this architecture: FP16 and dot product. +In order to have a binary like this (multi_isa+armv8-a) the FP16 and dot product kernels in the library are compiled for the +target armv8.2-a and all other common code for armv8-a. @subsection architecture_experimental_per_operator_build Per-operator build |