08:32:45 From Frederik Schubert : Why is "eating" in the dining philosophers the critical section? In the initial problem with 5 philosophers it seems to be fine, if 2 philosophors would eat at the same time, as long as they have 2 forks 08:34:35 From Loke M. von Bagh : Someone replaced the forks with chopsticks in an example to clarify that you need 2 forks to eat, which can seem odd 08:35:25 From Frederik Schubert : Yes, understood 08:35:26 From Frederik Schubert : thanks 08:36:40 From Loke M. von Bagh : The sound was not great on the last lecture, so if no one has further questions about this one, could you go over an example from the previous one to give additional guidance for the way to argue for correctness? 08:40:33 From William Voong to Marina Papatriantafilou(Privately) : picking up the left and right fork, is that equivalent to elimating hold and wait condition, "get all its resources at once", in the boat example you shown previously. 08:44:19 From Stig Arne Knoph : Why not placing pair of forks together or a bunch of them in the middle? 08:47:44 From Stig Arne Knoph : What are the forks examplifying in a real system? 08:50:20 From Loke M. von Bagh : yes thank you 08:51:32 From William S : On the same problem, how can A enter it's remainder section without setting turn <- idB? It was said that progress is not guaranteed in that problem as A can be in remainder while be is waiting for unbounded time... 08:51:42 From William S : B is* 08:53:10 From Marcel Vacante : I think he is wondering why it does not guarantee progression 08:53:20 From William S : But I don't see how A enters it's remainder section without letting B in 08:53:47 From Loke M. von Bagh : If B is in cs and A does not enter cs, instead continuing its remainder section forever, B will never enter again 08:54:08 From William S : Ah 08:54:12 From William S : THanks Loke 09:38:37 From Kristoffer Söderberg : but we have not yet seen an approach that solves all problems right? like in the last video, it can still suffer from starvation 09:40:49 From Kristoffer Söderberg : ok thanks, please post the link when possible 09:42:55 From Marina Papatriantafilou : https://dl.acm.org/doi/pdf/10.1145/62546.62567?casa_token=ipDWvfUDyAkAAAAA:qrnQmJzx7jVp6_U_xoqIuUe1B3NFxu4dmpTzfMMO6yK07wHsu5HUVmdhmrhPA7blSSo8SxgbAqs 09:43:21 From Marina Papatriantafilou : Improved Algorithms for Distributed Resource Allocation Abstract Eugene Styer Gary L. Peterson 09:44:08 From William Voong to Marina Papatriantafilou(Privately) : In the fighting in hold and wait when do we signal S[i]? 09:44:19 From William Voong to Marina Papatriantafilou(Privately) : oh nvm 09:44:21 From William Voong to Marina Papatriantafilou(Privately) : i found it 09:44:26 From Marina Papatriantafilou to William Voong(Privately) : ok 09:46:49 From Dean Atwine : Are we using the same zoom? 09:46:58 From Ivan Lyesnukhin : buy 09:47:04 From Ivan Lyesnukhin : yes, it is same