Intel® Advisor User Guide

User Guide

Contents

target-gpu

Specify a target GPU to collect data for if you have multiple GPUs connected to your system.

Syntax

--target-gpu
=
<string>
Arguments
<string>
 is a bus/device/function of a GPU adapter with
decimal
 numbers in the following format:
<domain>
:
<bus>
:
<device-number>
.
<function-number>
Default
The most recent GPU device family that
Intel® Advisor
 detects. If you have several such GPUs, the first device on a PCI bus is the default.
Actions Modified
collect
=survey --profile-gpu
collect
=tripcounts --profile-gpu
collect
=roofline --profile-gpu
Usage
Make sure to specify the same device configuration for both Survey and Trip Counts & FLOP analyses..
To see the list of option arguments for your system, run
advisor --help target-gpu
 and see the option description.
For a list of GPUs with their bus/device/function adapters:
  • On Windows* OS, see
    Task Manager
    .
  • On Linux* OS, run
    lspci -D
    .
--target-gpu
 option accepts
only
 decimal numbers in a GPU address, and the option help lists the available arguments in the acceptable format. If you use a different way to get the GPU adapter list, for example, the
lspci -D
 command, and get the GPU address with numbers in a hexadecimal format, you should convert it to the decimal format before passing to the
--target-gpu
 option.
For example, if you have the address
0:4d:0.0
, you should convert it to the decimal format first and pass it to the
Intel Advisor
 as
0:77:0.0
.
Do not confuse the
target gpu
 option with the
target-device
 option. The
target-device
 option modifies only the
--collect=tripcounts
 action and is used to simulate memory cache of a specific GPU platform for Offload Modeling. The
--target-gpu
 modifies the
--collect=roofline
,
--collect=survey
, and
--collect=tripcounts
 and is used to select a target GPU to collect data and plot a GPU Roofline for if you have several GPUs.
Example
  1. Run Survey analysis for the GPU adapter 0:0:2.0.
  2. Run Trip Counts and FLOP analyses of the Characterization stage for the same device. 
$ advisor --collect=survey --profile-gpu --target-gpu=0:0:2.0 --project-dir=./advi_results -- ./myApplication
$ advisor --collect=tripcounts --flop --profile-gpu --target-gpu=0:0:2.0 --project-dir=./advi_results -- ./myApplication

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.