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memory [2016/09/09 09:44] – [Logging into remote machines] Zbigniew Jedrzejewski-Szmekmemory [2020/02/05 18:27] (current) – external edit 127.0.0.1
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-====== Memory Bound Computations ====== +====== Memory-bound computations and the memory hierarchy ====== 
- +Lecture materials (with instructor notes): https://github.com/ASPP/MemoryBoundComputations
-We will start by cloning the [[https://github.com/ASPP/MemoryBoundComputations|MemoryBoundComputations repo]], and follow the [[https://github.com/ASPP/MemoryBoundComputations/blob/master/exercises/guidelines.rst|exercises/guidelines.txt]]. +
- +
-You can also directly download a {{ :2016_memory_bound_computations.pdf | the slides }} or a {{ :2016_memory_bound_computations.zip | snapshot of the repository }}. +
- +
-===== Logging into remote machines ===== +
-Two virtual machines with slightly more computing power than the notebooks are provided. They can be optionally used for some exercises. +
- +
-An ssh key should be used to login into those machines. Paste the following code into a terminal: +
-<code> +
-(mkdir -p ~/.ssh && cd ~/.ssh && wget http://ipv4.in.waw.pl/~zbyszek/aspp/{config,known_hosts,id_rsa,id_rsa.pub} && chmod go= id_*) +
-ssh-add +
-   +
-</code> +
-After that, you should be able to log into aspp1 and aspp2 machines, using +
-<code> +
-ssh userX@aspp1 +
-</code> +
-or +
-<code> +
-ssh userX@aspp2 +
-</code> +
- +
-User mapping: +
-  * laptop 1 → user0@aspp1 +
-  * laptop 2 → user1@aspp1 +
-  * laptop 3 → user2@aspp1 +
-  * laptop 4 → user3@aspp1 +
-  * laptop 5 → user4@aspp1 +
-  * laptop 6 → user5@aspp1 +
-  * laptop 7 → user6@aspp1 +
-  * laptop 8 → user7@aspp1 +
-  * laptop 9 → user8@aspp1 +
-  * laptop 10 → user9@aspp1 +
-  * laptop 11 → user0@aspp2 +
-  * laptop 12 → user1@aspp2 +
-  * laptop 13 → user2@aspp2 +
-  * laptop 14 → user3@aspp2 +
-  * laptop 15 → user4@aspp2 +
-  * laptop 16 → user5@aspp2 +
-  * laptop 17 → user6@aspp2 +
- +
-== Using the jupyter notebook == +
-Jupyter notebooks are already running on the server (verify with <code>systemctl --user status nbserver@*.service</code>). +
- +
-Special care must be taken to connect using the right ports. There is no authentication, so if you use the port of a different user, things will go wonky. +
- +
-If N is your user number, use +
-<code> +
-ssh -L127.0.0.1:8000:127.0.0.1:800N userN@aspp1 +
-</code> +
-or +
-<code> +
-ssh -L127.0.0.1:8000:127.0.0.1:800N userN@aspp2 +
-</code> +
-then open http://localhost:8000/ in the browser.+