How fusion could change the world

Today, we offered an online talk in the University of Edinburgh for free.

Last week, Bella, Lorenzo and myself were able to outline the main points of the talk. We did an online rehearsal to anticipate some questions and answers.

Bella is a well-informed educator in the fusion field and she explained the process of getting and releasing the energy source using a lithium blanket in a tokamak. I particular liked how she explained the purple colour of a plasma.

Lorenzo gave an overview about fusion and the role of Artificial Intelligence to make fusion possible for everyone is the upcoming years. Hopefully in 2040s.

Julita (me) was trying to emphasized the digitalization of a tokamak, and the effort done for around 100 years for several scientists around the world.

I was very glad to see that we reached an audience of about of 52 people.

Some curious questions were raised after our presentations, such as how many tokamaks are in the world, when it will be possible to have sustainable fusion, how IA contributes to this challenge, among other numerical accuracy questions.

Other questions were solved in the box Q/A online by others such as Gulio:

Thanks to Xinran and all the organizers for the opportunity to share our knowledge with more students and future scientist!

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UKAEA at the TYC London event

A group of enthusiastic employees of UKAEA attended to an event organized by the TYC in the Queen Mary University located in London, UK on May 10th.

UKAEA talents

Michelle Tindall traveled to London from South Yorkshire where UKAEA has a new site with scientists allied to achieve the commercial fusion in upcoming years. She shared her fusion’s experience with the PhD students.

Priti and Bella are two inspirational women involved in the fusion field. They emphasized the importance of the studies of materials, and their behavior at nano-scale level at extreme temperatures. Most of the students at the event have expertise in this matter.

Jacob and Sam are the two scientists working for the STEP project. They have more than five years experience and know-how of prototyping and integration of components in a tokamak (JET and ITER).

Julita (myself) recently joined STEP and the tokamak digitalisation challenge. I am striving for simulating different components of a tokamak. I shared my knowledge with the students.

The talks

I was very pleased to hear that most of the studies involved the application of IA with GPUs and Tensor Flow, as well as HPC cluster Tier 1 such as ARCHER, and some other chemical researches that use Tier 3 clusters that London Universities own. Some projects are still using local cores in their studies, that is the case of the lovely chair: Chengcheng Xiao. Congratulations also to Fabian, who won the poster competiti0n by doing a study of the graphene deformation.

Latino American Scientist in the UK

I was thrilled to speak face-to-face in Spanish (my mother tongue) with successful scientists in the UK: Jorge Ontaneda and Rachel Crespo Otero.

Event Catering

We enjoyed an extensive range of the finest and delicious coffee breaks, lunch, and our happy ending with wine and snacks. Thank you very much to the organizers for the invitation and kindness received throughout the event.

Personally, I had nostalgic feelings towards parts of university in Edinburgh by hearing about CP2K on ARCHER. I can say that this conference somehow took me to the past at uni moments, and oddly also to the future, I had the opportunity to talk more with colleagues about the fusion business. Thanks UKAEA for this! ❤

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My presence at Culham Plasma Physics Summer School

I was able to attend the 58th edition of the Culham Plasma Physics Summer School held at the UKAEA site. This event which consists of students and professionals related to Physics, Maths, Computer Science, and researches from around the world who are working in favour to develop nuclear fusion.  

The lectures 

As it was planned in the schedule, the first day started with an overview of what UKAEA is doing in order to achieve its mission. The first talk was presented by the CEO, Ian Chapman. It was followed by Chris Warrick from UKAEA comms to talk about the history of Plasma. One of the renowned researchers (Mr. Chippy Thyagaraja) presented on both Mathematics and Plasma physics. 

From the right to left, Dr. Chapman, Dr. Chris, and Dr. Chippy.

My favourite talks

I chose these talks because in my eyes, being a scientist and communicator is extremely challenging. Prof. Nicholas Braithwaite from The Open University gave us an idea of the progress overtime in the subject of Low Temperature Plasma. Dr. Kate Lancaster who was also an attendee of the Culham Summer School 20 years ago (wow!) talked about inertial confinement plasma. One of the youngest lecturer was Phd. Hardman from Oxford, who really did a hard job in kindly presenting the talk twice since he did it online and also, in behalf of his colleagues.  

The attendees

The organization provided some tea and biscuits during break times in the middle of morning and afternoons. Paul Hiret, was the winner of the poster presentation with his study in plasma. The launch time was a great opportunity to meet more researchers and thanks to all for kindly accepted my unexpected photos 🙂  

Closing event

A dinner was organized in the Edmund Hall at Oxford University after two intense weeks. We enjoyed an exquisite menu with wine. I had the chance to meet a well experienced professional in Plasma in Business: Adam Woods, who is working for STEP!  

My appreciation 

I am glad that now I have a better understanding of the structure of a tokamak, the studies of plasma done in the UK, the USA, Russia and throughout the EU. 

In the future Culham Plasma School events, I would suggest arranging the order of topics (e.g. We had “What is a Tokamak” on Wednesday, instead of Monday). Starting from the simplest concepts for the first day, makes easy to understand the complexity of plasma concepts and other work related. 

I also was pleased to meet different scientists with different personalities and cultures ❤  

Friendly support 

I want to give a special thanks to some participants for making me feel welcome in this new world of science. They kindly offered some explanations on what is going on in the lectures and in general, in the UK.  

Pictured from the left to the right: Emily Lewis, Luke Humphrey and Michelle Tindall.

The content of this post was approved by UKAEA’s comms: Chris Warrick, Nick Holloway, Nikolaus Muldal. Special Thanks to Tara Robinson for the English corrections.

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GNOME Latam 2021

Today, we have “celebrated” a year of the lock-down in the UK. It is also been a year that I was not able to travel to anywhere to celebrate with the GNOME community all the advances that this organization has been done for years in pro-FLOSS.

I have been invited to be a presenter in this new endeavor! The GNOME Latam 2021! Thanks to Daniel Gallegillos who gave me more details about this event, where mostly the languages used in the talks are going to be Spanish, and Portuguese.

You are more than welcome to join us, and to listen to these interesting talks this Saturday, March 27, 2021. To see the entire content of the talks, click here!

See you there! UTC – 13:00 hrs.

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Building an application on MOOSE

Yesterday, I attended to the workshop of MOOSE held by members of the Idaho National Laboratory. There were two days, where they showcased around 11 exercises of MOOSE. One of them was the hands-ons by Andrew Slaughter, and I want to share that experience.

First of all, we can clone the repository to see the structure of the folders of a MOOSE app.

git clone https://github.com/aeslaughter/MurderHornet.git

Inside the application which in this case is called MurderHornet, we are going to build it in parallel to finally run the tests previously set. We have to see a message PASS for this test.

cd MurderHornet/
make -j 4
./run_tests

Now, it is time to run the input file with the executable developed by Andrew inside the kernel folder. Usually, the input is located inside the problem folder.

~/projects/MurderHornet/problems
../murder_hornet-opt -i laplace_young.i

Lastly, we can view the simulation using peacock by executing the following command:

~/projects/moose/python/peacock/peacock -r laplace_young_out.e

Thanks so much to Jason Miller and to  Alex Angelou for the help with MOOSE 🙂

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Understanding the Hello World of PDEs

According to the tutorial of FEniCS (software that solves PDEs using the Finite Elements method), solving the Poisson equation in 2D is programming the “Hello World” of PDEs.

The mathematical aspects

We have to consider that the Poisson equation involves these two conditions:

-∇² u (x) = f(x), x in Ω       (01)

u(x) = uD (x), x on δΩ       (02)

In (01), f(x) is a known function, Ω is the domain of the solution, ∇² is the Laplace operator (Δ), and we have to solve u(x). In 2D, we can represent -∇² u (x) as: -(δ²u/δx²) – (δ²u/δy²) = f(x,y).

In (02), Ω is the boundary of Ω, and u=uD represents the boundary condition.

FEniCS uses the Finite Elements method to solve PDEs, then it is compulsory to express the PDE (01) in a variational form. In order to get the variational form, we can multiply the PDE by a function called v(test function) with a premise that v=0 on δΩ, then we can integrate it over the domain Ω, having this:

  (03)

 

Analysing the right side of (03), we can do integration by parts to finally get a result such:

(04)

 

Both v(TestlFunction) and u(TrialFunction) are going to be defined in the same V domain that contains a mesh with the number of vertex selected to discrete the domain. Since the functions located in the domain V are continuous, a technique used by FEniCS is to discrete to make it computational. Then, FEniCS only considers a set of functions called V_h which are also included in V. Later, it is also convenient to assign the left side of (04) to the variable L, and the right side of the equation to the variable a, as follows:

(05)

The author in the tutorial indicates that he has constructed a problem with a known analytical solution so that it can be easily checked the correctness in computational terms. The following values have been selected in this matter:

f(x,y)=6,

uD(x,y)=1+x²+2y²,

Ω=[0,1]×[0,1].

The computational aspects

Let’s do a review line by line throughout this “hello world” FEniCS implementation.

from fenics import *

Firstly, we are importing all the libraries of FEnicCS to be used in the program. To install FEniCS, I used Python3, Dolfin and podman on Fedora 32. Other tools can be found here.

mesh = UnitSquareMesh(8, 8)

We are setting a mesh of a shape of square of dimension 1(Unit square mesh). It will be divided by 8 parts in 2D, 8 on x axis, and 8 on y.

V = FunctionSpace(mesh, 'P', 1)

The previous mesh defined, is used in a finite element function space called V. The Lagrange method of order 1 is applied to solve the equation with the Poisson restrictions explained before. A note aside, is the use of order greater than 1, can generate more errors.

u_D = Expression('1 + x[0]*x[0] + 2*x[1]*x[1]', degree=2)

The u_D function is a known input which defines the boundary conditions. In this case, the formula implies a polynomial order 2. x[0] denotes the value of x, and x[1] denotes y.

def boundary(x, on_boundary):
    return on_boundary

The on_boundary function has previously been coded on FEniCS to validate if a point belongs to the current boundary of the domain, or not.

bc = DirichletBC(V, u_D, boundary)

The boundary condition (bc) is stated in the space V, to be applied on boundary of the function u_D. By using the type of boundary condition “Dirichlet”, it will specify the values that a solution needs to take along the boundary in the domain V.

u = TrialFunction(V)

It was mentioned that the u function is the PDE we are looking for. In order to find the solution, it was also explained that we need the variational formula. In this case, “u” is the new problem to solve and it will be called as TrialFunction in a TrialSpace V.

v = TestFunction(V)

It was taking into consideration a v function that will have the value of zero in the border.  This v function is going to be called TestFunction in the V TestSpace. It will be computed against the trial function u to satisfy the variational problem.

f = Constant(-6.0)

The f function, is a function that is known to solve the EDP. In this case, is a constant = -6.

a = dot(grad(u), grad(v))*dx

The left side of the variational formula is going to be assigned to a. It will compute the trial function u versus all the v test functions in V.

L = f*v*dx

The right side of the variational formula considers the function f on all the test functions v.

u = Function(V)

Since u is the Function that solves the EDP, we need to prepare this variable to receive the final solution in the domain V.

solve(a == L, u, bc)

The operation to solve u requires that, a is equal to L, as well as the calculation of bc. The solution will be assigned to u.

plot(u)

The solution u can be plot and could be visualized using tools such as Paraview or Visit.

plot(mesh)

We can also display the mesh to the see the highness of the PDE in regards its domain.

vtkfile = File('poisson.pvd')

We are going to save our solution in the vtkfile variable, under the name of poisson.pvd.

vtkfile << u

Again, u is the final answer (PDE) that will be stored in the vtkfile.

error_L2 = errornorm(u_D, u, 'L2')

After finding u, we need to know how far we are in comparison to the correct solution. It is known that the U_D is the solution, then we have to calculate the error with the error_L2 formula which utilizes spaces of Gilbert to find the norm in u.

vertex_values_u_D = u_D.compute_vertex_values(mesh)

The error is also computed in the vertexes of the mesh, in this case, the ones in the border.

vertex_values_u = u.compute_vertex_values(mesh)

This line compute the error in the vertexes of the mesh inside the border of the PDE.

import numpy as np

We are going to import the library numpy with the alias np to use max and abs functions:

error_max = np.max(np.abs(vertex_values_u_D - vertex_values_u))

This calculates the maximum error found in the solution including border and content.

print('error_L2  =', error_L2)

This line only prints the error found in the calculation of error_L2.

print('error_max =', error_max)

This line prints the maximum error found in the PDE.

The simulation 

Paraview shows both, the domain and the PDE as follows:You can find more PDEs tested from the tutorial in my github. Thanks to Manuel Merino!

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My first MOOSE simulation

MOOSE is a tool that allows the use of many physics and maths libraries to run simulations of finite elements of any shape, including unstructured meshes.

My purpose is to run simulations in parallel. My laptop that already is using Fedora 32, has four cores to process calculations.

According to the official MOOSE Website, we can install MOOSE using Conda.

1. In case you already have installed Conda, and its configuration; please go to the step 3.

You might install conda on Linux, by executing the following command:

curl -L -O https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh
bash Miniconda3-latest-Linux-x86_64.sh -b -p ~/miniconda3

2. Then, please set the global environment in our system to use conda:

export PATH=$HOME/miniconda3/bin:$PATH

3. Let’s add the channel conda-forge that will allow us to create the moose environment:

conda config --add channels conda-forge
conda config --add channels https://mooseframework.org/conda/moose
conda create --name moose moose-libmesh moose-tools

4. You need to activate the new moose env to use it. Do an update if it is possible:

conda activate moose
conda update --all

5. Clone the moose code and the examples provided in the new moose environment:

mkdir ~/projects
cd ~/projects
git clone https://github.com/idaholab/moose.git
cd moose
git checkout master

6. You can run the project in parallel, in this case we are using only four cores:

cd ~/projects/moose/test
make -j 4
./run_tests -j 4

If everything is a success, a message that the passed tests done in parallel, is displayed:Now, were are ready to run our first MOOSE program. I followed this workshop

cd ~/projects/moose/tutorials/darcy_thermo_mech/step01_diffusion
make -j 4 # use number of processors for your system
cd problems
../darcy_thermo_mech-opt -i step1.i

Remember to copy the content of sept1.i, and execute the output with Peacock, as follows:

~/projects/moose/python/peacock/peacock -r step1_out.e

Now, we have our simulation in action 🙂Thanks to my friend Manuel Merino for his support during my new age as a scientist.

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Dolfin on Podman

Since Docker is not useful on Fedora 32 anymore, I decided to install podman in order to use the dolphin (previously called fenics) to run some solutions of PDEs.

Install podman on Fedora 32. If you want further information of podman, click here.

sudo dnf install -y podman

You might check that you are running podman by executing the ps command. This process might take a while. It is a new environment that use Fedora 32 resources.

[yulytas@fedora ~]$ podman ps -s
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES SIZE
[yulytas@fedora ~]$

Now, we are going to create a folder where all the dolfin work will be stored in our laptop:

sudo mkdir ~/dolfin

From the file recently created, we can access interactively to the container register in quay.io/fenicsproject/stable:current. This will happen by using the port 8000 and mounting the work space /home/fenics/shared into my local folder ~/dolfin, as follows:

cd ~/dolfin && podman run -ti -p 8000:8000 -v ~/dolfin:/home/fenics/shared -w /home/fenics/shared quay.io/fenicsproject/stable:current

repofenics

*** If everything goes well, you will see the following message displayed ***

# FEniCS stable version image

Welcome to FEniCS/stable!

This image provides a full-featured and optimized build of the stable
release of FEniCS.

To help you get started this image contains a number of demo
programs. Explore the demos by entering the 'demo' directory, for
example:

cd ~/demo/python/documented/poisson
python3 demo_poisson.py

What I am going to do from now on is, calculate the PDEs using dolfin (fenics), and then copy the results to /home/fenics/shared which is linked automatically to my local /dolfin.

Thanks to Dan for the explanation about containers.

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Jupyter Notebook on Fedora 32

Hello world, I am back again to science… and this time I will program PDEs using Python!

Firstly, we need to download the Anaconda package, in my case for Linux and python 3.xCopy the package downloaded to the path for out installation and execute the script:

bash Anaconda3-2020.02-Linux-x86_64.sh

Press yes if you accept running the installer to initialize, as follows:

To reload the modification of the bashrc file, we need to execute the source command:

source ~/.bashrc

To navigate on Anaconda applications like Jupyter Notebook, you might run on terminal:

anaconda-navigator

Finally you can launch Jupyter which will be work locally as you can see:Check out into your browser to see the tree of files presented by Jupyter. I am going to create a folder called FEniCS to run some PDEs programs. Then, locate into the new created folder, and click on New > Notebook: Python3To execute your code, press SHIFT + ENTER

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Tuning my Fedora 32 after installation

There are plenty of articles online related to this topic, but I will share my own humble basic experience to set up an environment as a developer.

First of all, the size of the fonts on the system is (in my eyes) too small. I have a myopia, then I need to large the fonts. One way to do it is by the modifying the setting of the system, in the Universal Access option: In the same settings menu, you might choose other features to tune according to your necessities.

Another crucial change that Fedora has to do is updating the Firmware. In my case, it was done automatically after Turn off and Turn on again. I did this instead of Reset because it got many issues such as not turn it on again.In case you do not see that happening automatically, I strongly suggest that you do it automatically, by using the Software Manager application, as this:Additionally, you can setup the power battery management to increase the life of the battery of your laptop, by executing these commands:

sudo dnf -y install tlp tlp-rdw
sudo systemctl enable tlp.service
sudo systemctl restart tlp

Finally, to install an IDE to code in C++, it was decided to use Flathub to avoid dependency issues that I might have in the way of the installation.Good luck! Any suggestion for improvement or comment is welcomed!

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Upgrading Fedora 31 to Fedora 32

Why do we upgrade Fedora each year?

Since 2003, Fedora contributors around the world have been working on improvements in favour of this free software. The support of each developed version can last for a year, then it is important to do an upgrade to get t. Nowadays the Fedora project has released the Fedora 32 version, and by upgrading my Fedora 31, I can get also the new improvements for GNOME ❤︎

Upgrading using GUI methods

In case you are not familiar with the Command Line Interface (CLI), then you can click on the Software option to do the Upgrade as it follows:Upgrading using CLI methods

According to the Official Fedora documentation, we can follow these steps:

sudo dnf upgrade --refresh 
sudo dnf install dnf-plugin-system-upgrade
sudo dnf system-upgrade download --releasever=32
sudo dnf system-upgrade reboot

Some screen-shots of the upgrading process in my laptop:Finally, I got Fedora 32 and GNOME 3.36.2:Alternative with one line:

This process took me a while… if you are reading this post and you just installed the Fedora 31 with no much data in your laptop, you might try the upgrading with only one line:

sudo dnf -y --releasever=32 --setopt deltarpm=false distro-sync

#stayHome #staySafe #stayEducated

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Installing Fedora 31 on Windows 10 using MacOS Catalina

This installation has been done on a Dell 7400 laptop…

On the MacOS

It was downloaded Fedora 31 ISO , and a USB was inserted. Then, open a terminal to use the command diskutil list which will display the current disks:

We can identify that my USB is represented by the /dev/disk2 file, and it has 4 GB. This file will be unmounted to delete any instance attached to the USB.

Now, with the help of the command dd, we will copy the standard input (the Fedora ISO) to the standard output (my USB). This might take several minutes.You might now remove safely the USB flash drive as it follows:

Life is not too short to do it…

On Windows 10

Insert the bootable USB flash drive you have created in the MacOS. Then, Restart the Windows 10’s laptop, and press F2 to enter the UEFI settings.

Due to the restrictions that the new DELL 7400 presents, we need to disable some options such as Secure Boot option to boot from our USB stick:The Advance Boot Options has to be Enable in order to read the USB content.Finally, the Boot Sequence has to present as our first option: the USB Disk.Click on APPLY after setting the changes to save the new configuration.

Restart again, and this time press F12 to choose the USB Disk option:A list of options to run Fedora 31 will appear. You might test it first to see how does it work. We are going to install on disk, then select Start Fedora-Workstation-Live-31:

On our Fedora 31

Click on Install to Hard Drive

Select the language you prefer. I will chose English (United Kingdom):Configure these three basic options on Fedora 31 according to your resources:In my case, I usually write in English UK, English USA, and Spanish. Select the appropriate timezone, in my case I will choose London – UK: If you want to use the whole Hard Disk, then click on the Disk icon, then Done.

In case you need to set a password to encrypt the disk, you might check on Encrypt my data option. This option will appear after Restarting.To use all the space for the hard disk, I will Reclaim space and Delete all.Finally, click on Begin Installation to start the installation on disk:Now you have Fedora 31! :gratula:

* Now you can install basic packages on your laptop following this script.

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Report of GNOME PERU FEST 2020

1. Before the event

A. Coordination

a) The speakers 

The idea was gathering all the Peruvian GNOME lovers to share our experiences with GNOME throughout all the past ten years to all our viewers around the world.

Jose Quiñones (juazisco) is currently a chief in the IT area of the Health Public sector in Peru. He has been previously involved in the initiative GNOME PERU Challenge 2017-1

Fabian Orccón (cfoch) is a member of the GNOME Foundation, GSoC mentor and ex-GSoC student. He also supported GNOME Peru events such as HACKCAMP 2016.

Martin Vuelta (zodiafireworks) is a FLOSS enthusiastic person who helped me in organizing previous GNOME events such as Linux Playa,  LinuxAtUNI and PeruRumboGSoC2018.

Alex Aragón (aragcar) has been a designer for many FLOSS events I have organized for years. He participated in the LinuxCamp2012. One of the first designs he did here.

Fiorella Effio (aweba) is a Frontend developer who has also participated in several GNOME events in Peru since 2016. She wrote most of her experiences with GNOME here.

Angelou Alexander (aggalex) is a student from Greece, and our only international guest. We have met in the GUADEC 2019 and we did together a workshop at FOSSCOMM 2019.

  • We had two previous meetings before the event online as you can see in the pictures:

B. Advertising 

First of all, the GNOME marketing team was informed, as well as the GNOME members through the GNOME Planet. I also documented this event in the wiki.

The event was promoted using the fan page from GNOME PERU FEST, Linux at UNI and in the fan page of Fedora Peru.

Special thanks to Maricielo Isabel Vergara Lao who designed the poster for the event.

C. Setting up the technology 

We basically did a streaming on Facebook using OBS and Jitsi to present GNOME 3.36.

2. During the event 

As it was planned, the streaming started at 9am (Peruvian time). The speakers and myself were ready on time for the transmission. However, we only saw a few of people connected. This is understandable due to time difference between UK and other parts of the world. During this quarantine time, people usually sleep late, and might wake up late to prepare their brunch around 11 am… Anyway, we officially started 9:30 a.m. (Peruvian time).Our transmission lasted around 5 hours as it was planned. Thank to all the speakers that were connected the five hours in a raw. Fiorella Effio had prepared her GNOME on Ubuntu, but she did not do a presentation due to a technical issue. We had very few views online ranging from 9 to 25 people. Some of them expressed interested in joining GNOME.In the UK, the event started in the afternoon and it finished at night time. I was so glad to arrange my first online event. Special thanks to Angelou for his kind help. Greece has two hours ahead UK, but Angelou was always there for the meetings with our team.This quarantine time made me change the format of the GNOME parties I use to organize. We have celebrated the new version 3.36.1 with the usual balloons and selfies. I used cereals instead of a consistent cake.

3. After the event 

Overall, I am satisfied and happy that new people showed interest in the GNOME project. The streaming has reached so far more than 6,500 people, and more than 1,700 views.

You are so welcomed to see our event here!

Thanks to all the world! #stayHome #staySafe #stayEducated

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GNOME PERU FEST 2020

Hello world again! I am thrilled to announce that I am organizing the GNOME PERU FEST 2020 via online. Thanks to Maricielo, one of the designer team of the company Tunqui Creativo, we have published our event in the Facebook page of GNOME PERU.
You might take a look into the slides I am planning to present for my first introductory part of GNOME of the event. In case you have suggestions to improve, they are so welcomed! Sorry if the information is in Spanish, but we mostly talk in Spanish in Peru.

We are getting ready to introduce GNOME to the world in this quarantine:

P.S.: During this quarantine, please stay at home, stay safe, motivated and educated.

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LAS 2019: A GNOME + KDE conference

Thanks to the sponsorship of GNOME, I was able to attend the Linux App Summit 2019 held in Barcelona. This conference was hosted by two free desktop communities such as GNOME and KDE. Usually the technologies used to create applications are GTK and QT, and the objective of this conference was to present ongoing application projects that run in many Linux platforms and beyond on both, desktops and on mobiles. The ecosystem involved, the commercial part and the U project manager perspective were also presented in three core days. I had the chance to hear some talks as pictured: Adrien Plazas, Jordan and Tobias, Florian are pictured in the first place. The keynote was in charge of Mirko Boehm with the title “The Economics of FOSS”, Valentin and Adam Jones from Freedesktop SDK and Nick Richards where he pointed out the “write” strategy. You might see more details on Twitter.

Women’s presence was very noticeable in this conference. As it is shown in the following picture, a UX designer such as Robin presented a communication approach to understand what the users want, the developer Heather Ellsworth explained also her work at Ubuntu making GNOME Snap apps, the enthusiastic Aniss from OpenStreetMap community also did a lightning talk about her experiences to make a FOSS community stronger. At the bottom of the picture we see the point of view of the database admin: Shola, the KDE developer: Hannah, and the closing ceremony presented by Muriel (local team organizer).

On Friday, some BoFs were set. The engagement Bof leading by Nuritzi is pictured first, followed by the KDE team. The Snap Packaging Workshop happened in the meeting room.

Lighting talks were part also of this event at the end of the day, every day. Nuritzi was prized for her effort to run the event. Thanks Julian & Tobias for joining to see Park Güell.Social events were also arranged, we started a tour from the Casa Batlló and we walked towards the Gothic quarter. The tours happened at nigth after the talks, and lasted 1.5 h.Food expenses were covered by GNOME in my case as well as for other members. Thanks!

My participation was basically done a talk in the unconference part, I organized the GNOME games with Jorge (a local organizer) and I wrote a GTK code in C with Matthias.The games started with the “Glotones” where we used flans to eat quickly, the “wise man” where lots of Linux questions were asked, and the “Sing or die” game where the participants changed the lyrics of sticky songs using the words GNOME, KDE and LinuxAppSummit. Some of the moments were pictured as follows:The imagination of the teams were fantastic, they sang and created “geek” choreographies as we requested:One of the games that lasted until the very end was “Guessing the word”. The words depicted in the photo:LAS, root, and GPL played by Nuritzi, Neil, and Jordan, respectively.It was lovely to see again several-years GNOME’s members as Florian, who is always supporting my ideas for the GNOME games 🙂 the generous, intelligent and funny Javier Jardon, and the famous GNOME developer Zeeshan who also loves Rust and airplanes.

It was also delightful to meet new people. I met GNOME people such as Ismael, and Daniel who helped me to debug my mini GTK code. I also met KDE people such as Albert and Muriel. In the last photo, we are in the photo with the “wise man” and the “flan man”

Special Thanks to the local organizers Jorge and Aleix, Ismael for supporting me for almost the whole conference with my flu, and Nuritzi for the sweet chocolates she gave me.The photo group was a success, and generally, I liked the event LAS 2019 in Barcelona.

Barcelona is a place with novel architectures and I enjoyed the walking time there…

Thanks again GNOME, I will finish my reconstruction image GTK code I started in this event to make it also in parallel using HPC machines in the near future.

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