---
# System prepended metadata

title: 'Omniperf - Performance Analysis Tools for AMD GPUs, CRAY User Group Tutorial 2024'

---

# Omniperf - Performance Analysis Tools for AMD GPUs, CRAY User Group Tutorial 2024

--------------------------------------------------------------

# Omniperf Basic Examples

## vcopy

Setup environment
```bash
module load rocm omniperf/2.0.0-a1017
```
Get sample code
```bash
wget https://github.com/AMDResearch/omniperf/raw/main/sample/vcopy.cpp
```
Compile
```bash
hipcc -o vcopy vcopy.cpp
```

Profile with omniperf (select any device with `ROCR_VISIBLE_DEVICES`):
```bash
ROCR_VISIBLE_DEVICES=4 \
omniperf profile -n vcopy_all -- ./vcopy -n 1048576 -b 256
```
A new directory will be created named `workloads/vcopy_all`.

Analyze the collected profile using the built-in CLI
```bash
omniperf analyze -p workloads/vcopy_all/MI200/ &> vcopy_analyze.txt
```
View `vcopy_analyze.txt`
```bash
less vcopy_analyze.txt
```
We can select specific IP Blocks to analyze
```bash
omniperf analyze -p workloads/vcopy_all/MI200/ -b 7.1.2
```
If you've installed Omniperf on your laptop ( No ROCm Required ), you can
download `workloads/vcopy_all/mi200/` to your laptop and
run omniperf with `--gui` option
```bash
omniperf analyze -p workloads/vcopy_all/MI200/ --gui
```
Open the following in your browser
```url
http://172.21.7.117:8050/
```
![image](https://user-images.githubusercontent.com/109979778/225511493-c7cccc21-9cb8-426f-82da-7f790066aa89.png)

Alternatively you can start the server remotely in a port of your choice:
```
ssh USER@aac1.amd.com -p <PORT> -L <GUI_PORT>:localhost:<GUI_PORT>
omniperf analyze -p workloads/vcopy_all/MI200/ --gui <GUI_PORT>
```
and load in your browser:
```url
http://localhost:<GUI_PORT>/
```
## dgemm
Let's repeat the exercise

```
cd HPCTrainingExamples/HIP/dgemm

rm -rf build
mkdir build && cd build
cmake ..

CPATH=$ROCM_PATH/include/hipblas make
```
Profile and analyze code

```
ROCR_VISIBLE_DEVICES=4 \
omniperf profile --roof-only -n dgemm -- ./bin/dgemm -m 8192 -n 8192 -k 8192 -i 1 -r 10 -d 0 -o dgemm.csv

omniperf analyze -p workloads/dgemm/MI200 >& omniperf.out
less omniperf.out
```

Start que GUI as before to visualize the roofline. You'll notice some tables won't be populated as only the metrics to compute the roofline were collected.