digitalmars.D - GSoC 2011
- Mihir Patil (16/16) Apr 06 2011 Hi,
- Andrei Alexandrescu (10/20) Apr 06 2011 This list is a good point of contact because most mentors and potential
- Mihir Patil (19/39) Apr 07 2011 Hi,
- Fawzi Mohamed (41/81) Apr 07 2011 charset=US-ASCII;
Hi, I am Mihir. I am a Bachelors student of Computer Science. I am interested in applying for the lexing and parsing project in D. I am also interested in the garbage collection project. I am doing these tasks as my term project this semester and would love if I get this opportunity. There are no mentors listed on the ideas page. So whom should I contact or can anyone in the mailing list tell me some details about the task? Thank you. -- Mihir Patil 3rd year, BE (Computer Science), Joint Co-ordinator, Computer Science Association Birla Institute of Technology and Science,Pilani +91-9772974127
Apr 06 2011
On 4/6/11 3:21 PM, Mihir Patil wrote:Hi, I am Mihir. I am a Bachelors student of Computer Science. I am interested in applying for the lexing and parsing project in D. I am also interested in the garbage collection project. I am doing these tasks as my term project this semester and would love if I get this opportunity. There are no mentors listed on the ideas page. So whom should I contact or can anyone in the mailing list tell me some details about the task? Thank you.This list is a good point of contact because most mentors and potential mentors are frequenting it. We already have a strong candidature for a lexing and parsing project. Please look at discussions initiated by Luca Boasso in this forum. That doesn't mean you can't define a complementary project. Alternatively, feel free to select another potential project or come up with your own. Best regards, Andrei
Apr 06 2011
Mihir Patil <mihirmpatil gmail.com> Hi, Thanks Andrei for the heads up. I read the discussion in the archives as you said. I still did not find anyone talking about the garbage collection part. I have a decent enough knowledge about the theoretical aspects of it. And I am confident that I can implement it. I have read the garbage collection page of D on the website. If you can tell me if there is anything in particular required to be done in the current code, I can start with that. I'll also work on the proposal today. Thanks, On Thu, Apr 7, 2011 at 3:49 AM, Andrei Alexandrescu < SeeWebsiteForEmail erdani.org> wrote:On 4/6/11 3:21 PM, Mihir Patil wrote:-- Mihir Patil 3rd year, BE (Computer Science), Joint Co-ordinator, Computer Science Association Birla Institute of Technology and Science,Pilani +91-9772974127Hi, I am Mihir. I am a Bachelors student of Computer Science. I am interested in applying for the lexing and parsing project in D. I am also interested in the garbage collection project. I am doing these tasks as my term project this semester and would love if I get this opportunity. There are no mentors listed on the ideas page. So whom should I contact or can anyone in the mailing list tell me some details about the task? Thank you.This list is a good point of contact because most mentors and potential mentors are frequenting it. We already have a strong candidature for a lexing and parsing project. Please look at discussions initiated by Luca Boasso in this forum. That doesn't mean you can't define a complementary project. Alternatively, feel free to select another potential project or come up with your own. Best regards, Andrei
Apr 07 2011
charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit On 7-apr-11, at 09:05, Mihir Patil wrote:Hi, Thanks Andrei for the heads up. I read the discussion in the archives as you said. I still did not find anyone talking about the garbage collection part. I have a decent enough knowledge about the theoretical aspects of it. And I am confident that I can implement it. I have read the garbage collection page of D on the website. If you can tell me if there is anything in particular required to be done in the current code, I can start with that. I'll also work on the proposal today.Garbage collector is a challenging project (bugs are extremly ugly). There are several things that can be improved, and also several ideas floating around in particular wrt. to separate garbage collectors. I have a good knowledge of that part of the ode, and I would be willing to mentor such a project, I think also dsimcha had expressed interest, but I don't know what he had in mind/what he wanted to do. I see the following tasks as very useful improvements that will improve the current GC much, and still be feasible (and kind of progressive) 1) remove the global lock from malloc This entails having "local" (either to cpu/numa node or thread) pools, for at least some of the memory allocation 2) improve collection sequence, and guarantees for destructors (2 phases collection) 3) improve the parallelization of the gc collection (this has some limits, but one can for sure use more than one thread) 3b) hierarchical (generational) collector, this is quite challenging, as we cannot have a moving collector, probably too much for such a project, unless you have already written GCs 3c) implement a concurrent GC always working in its own thread, one has to define partial "safe" points, and possibly waiting points, like 3b I fear it might be too challenging for a GSoC. 4) use luca's trick of forking to reduce pauses on linux, this gives an almost concurrent GC taking advantage of the properties of fork, it also needs safe points and waiting points, but its realization is simpler. 5) separate GC for thread local (non shared) memory, this was discussed much, but one has to be careful to guarantee that no memory of that can be transferred by anything between threads,also when allocating one has to know which kind of memory should be allocated. Step number 1, will help building something like this, but it needs more compiler support, and it usefulness is more limited, so I would leave this as last. you can contact me by email or on IRC to discuss the details bye FawziThanks, On Thu, Apr 7, 2011 at 3:49 AM, Andrei Alexandrescu <SeeWebsiteForEmail erdani.orgwrote:On 4/6/11 3:21 PM, Mihir Patil wrote: Hi, I am Mihir. I am a Bachelors student of Computer Science. I am interested in applying for the lexing and parsing project in D. I am also interested in the garbage collection project. I am doing these tasks as my term project this semester and would love if I get this opportunity. There are no mentors listed on the ideas page. So whom should I contact or can anyone in the mailing list tell me some details about the task? Thank you. This list is a good point of contact because most mentors and potential mentors are frequenting it. We already have a strong candidature for a lexing and parsing project. Please look at discussions initiated by Luca Boasso in this forum. That doesn't mean you can't define a complementary project. Alternatively, feel free to select another potential project or come up with your own. Best regards, Andrei -- Mihir Patil 3rd year, BE (Computer Science), Joint Co-ordinator, Computer Science Association Birla Institute of Technology and Science,Pilani +91-9772974127
Apr 07 2011