Sparse Days 2022 will be held in Saint-Girons, in Ariège, from June 20 to 22. This enhanced version of Sparse Days is co-organized by Cerfacs and ENSEEIHT/IRIT. This will be the fourth meeting in Saint-Girons, following previous meetings held in 1994, 2003 and 2015. The tradition involves coupling our highly successful annual technical meeting with the ambience and hospitality of this wonderful Pyrenean town. A bus will take participants from Toulouse on Sunday 19th and there will be a welcome buffet in the evening. The meeting will finish after lunch on Wednesday 22. A panel on High Performance Computing will be held at ENSEEIHT in Toulouse in the evening of the 22nd.

As always, we will not have any parallel sessions. This year we will be highlighting themes in high performance computing including quantum computing, mixed precision computation, artificial intelligence, and data assimilation in addition to our normal fare of sparse solution techniques including direct, iterative, and hybrid methods. We also have a very good room for posters and will be able to leave them in situ for the duration of the conference. We plan to have a poster blitz session so that posters are an integral part of the meeting.

We have some funding for supporting students. Depending on numbers, we hope to support most students either partially or completely. You should indicate when registering that you are a student.

The meeting in St Girons is a fully face-to-face conference so, if COVID makes it impossible to hold this, the meeting will be cancelled. In the sad event of this happening, any money that you have paid in the registration will be fully refunded.

We look forward to welcoming you in St Girons.