Commit a543666a authored by Boris Baldassari's avatar Boris Baldassari
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Update aice aura demonstrator following fza review.

parent 8ab8a74a
Pipeline #3132 passed with stage
......@@ -137,10 +137,10 @@ Also by being able to run the process everywhere, we could execute it on several
![Workflow benchmarking](/images/articles/aice_aura_demonstrator/benchmark_perf.png)
On three different machines:
* A middle-range laptop, HDD disks and i7 CPU.
* A high-range Station, SSD disks and (a better) i7 CPU.
* A high-range server (SDIA), HDD disks and 2 x Xeon (48 threads).
* With a single container for data preparation vs. multiple containers executed in parallel.
* A middle-range laptop (label: Laptop), HDD disks and i7 CPU.
* A high-range station (label: Station), SSD disks and (a better) i7 CPU.
* A high-range server (label: SDIA), HDD disks and 2 x Xeon (48 threads).
* With a single container for data preparation vs. multiple containers executed in parallel (label: Mono / Multi).
We could identify different behaviours regarding performance. The data preparation step relies heavily on IOs, and improving the disk throughput (e.g. SSD + NVMe instead of a classic HDD) shows a 30% gain. The ML training on the other hand is very CPU- and memory- intensive, and running it on a node with a large number of threads (e.g. 48 in our case) brings a stunning 10x performance improvement compared to a laptop equipped with an Intel i7.
......@@ -148,7 +148,7 @@ We could identify different behaviours regarding performance. The data preparati
AURA uses Grafana to display the ECG signals and the associated annotations, both for the creation of annotated data sets and for their exploitation. In order to build this workflow we need to import the rr-intervals files and their associated annotations in a PostgreSQL database, and configure Grafana to read and display the corresponding time series.
An example of rr-interval with the associated annotations (blue/red bottom line), is shown below:
An example of rr-interval plot with the associated annotations (blue/red bottom line) is shown below:
![ECG and annotations](/images/articles/aice_aura_demonstrator/ecg_annotations.png)
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