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101)
Message boards :
News :
SETI@home hibernation
(Message 2039263)
Posted 20 Mar 2020 by Raistmer
Post: Short version- not enough money to keep doing both. IMHO it's rather manpower than money itself. Until we speak about money to hire few professionals in radiophysics/signal processing and DB administration not interesting in this research per se. Would be possible to find someone who will handle full pipeline as effective as Eric and others did all these years w/o bothering them with constant questions? I'm afraid not. Money can easely "find" few more HDDs if needed, but not so easy with right skilled professionals. |
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102)
Message boards :
News :
SETI@home hibernation
(Message 2038515)
Posted 17 Mar 2020 by Raistmer
Post: IMHO if final data analyse will give negative result or even if it will be never finished at all, in ALL cases time spent on this project in those 20+ years was NOT wasted for all involved. |
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103)
Message boards :
News :
SETI@home hibernation
(Message 2038041)
Posted 15 Mar 2020 by Raistmer
Post: Yes, it's a three - no, four - stage pipeline: collect, process, analyse, publish. Yep, "least of evil"-kind of decision - can't be really good.... Until SETI staff increased (I would say increase should be twice approx, at least 2 new persons with solid education in corresponding field and few graduates) it seems this inevitable... |
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104)
Message boards :
News :
SETI@home hibernation
(Message 2038036)
Posted 15 Mar 2020 by Raistmer
Post:
They collect, we process... but the analyse part stalls with Nebula... As I understand, main reason for hibernation is to finish Nebula and get results finally. "Results" that our computers return not real results in sense "yes, we found ET signal", they should be aggregated and summarized some way - that step Nebula should do. And to summarize them access to whole database of reported "signals"(in sense S@h client) required - that prevents DC-style of processing and limits our involvement in that stage. |
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105)
Message boards :
Number crunching :
Open note to all the Annonymnous Platform developers
(Message 2037528)
Posted 12 Mar 2020 by Raistmer
Post:
It's true, there are some paradigms learned that could be applied to other apps... but what could be as inspiring as SETI?.... Personally I hope we all recover after hibernation to new SETI apps and approaches. |
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106)
Message boards :
Number crunching :
More cores, worse performance? Why?
(Message 2037527)
Posted 12 Mar 2020 by Raistmer
Post: Are the tasks by themselves for the CPU and GPU basically the same or are they completely different in nature? I always thought they were somehow different and that partially explained why the GPU tasks finish so quickly. Exactly the same. |
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107)
Message boards :
Number crunching :
More cores, worse performance? Why?
(Message 2037524)
Posted 12 Mar 2020 by Raistmer
Post: Does the GPU card really make that much of a difference? Yes, it does. And second-order effects to consider: More simultaneous tasks mean increased CPU cache evictions/misses. And, finally,memory bandwidth saturation. So, increasing number of logical CPUs w/o corresponding improvement in CPU L3 cache size and RAM speed will give diminishing results at some point. |
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108)
Message boards :
News :
SETI@home hibernation
(Message 2037521)
Posted 12 Mar 2020 by Raistmer
Post: In fact, an advanced ET race is more likely to find us first than us them. What happens when that occurs and they say take us to your leader? Er, um,. sorry guv, we ain't got one! United nations? Rather not think so. Trump, Putin? Lord help us. Hardly more advanced civilization will have desire to speak with current officials. More probably some kind of progressors (look for Arkady and Boris Strugatsky SiFi books regarding this concept) will be sent. |
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109)
Message boards :
Number crunching :
SETI orphans
(Message 2037319)
Posted 11 Mar 2020 by Raistmer
Post: I've been looking at Einstein as a new home. They were friendly enough to open a spot in their boards to let us chat on Tuesdays, so that earns them bonus points in my book. How is their uptime? do they have a weekly outage? do I need to configure my system differently? AFAIK no weekly outages. But their tasks are huge (in RAM usage metric). On 32-bit OS I got memory issues when SETI queue dry and Einstein's tasks come into play. |
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110)
Message boards :
Nebula :
Estimating sensitivity
(Message 2037007)
Posted 9 Mar 2020 by Raistmer
Post:
Ups %) And how PulseFind algorithm validation done then? |
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111)
Message boards :
News :
SETI@home hibernation
(Message 2037006)
Posted 9 Mar 2020 by Raistmer
Post: BTW, if scientometrics plays same role in US universities as it became to play here SETI core team in big trouble for years already. Publicational activity quite low so it could be hard to justify own places @US Berkeley staff. No matter how important research you do, if it provides low "scores" - you in trouble... So, quite possible they really need to publish and spend whole time on papers preparation. Just because of those "external"reasons. |
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112)
Message boards :
News :
SETI@home hibernation
(Message 2037003)
Posted 9 Mar 2020 by Raistmer
Post: If what my computers have analyzed needs to be reanalyzed, then why isn't our computers doing it to help out? Next processing stage requires access to whole database. So it can't be distributed. We do first part that can be separated to many unlinked pieces. Next stage will link results of all those parts together. |
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113)
Message boards :
Number crunching :
20th Anniversary T-shirts
(Message 2036885)
Posted 9 Mar 2020 by Raistmer
Post: Hibernation better. Don't entice permanent shutdown by such T-shirt title ;) And _IF_ it would appear permanent, another T-shirt with R.I.P. will be appropriate |
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114)
Message boards :
SETI@home Staff Blog :
This hurts me as much as it hurts you.
(Message 2036741)
Posted 8 Mar 2020 by Raistmer
Post:
So true... Hope it will be pause not stop. |
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115)
Message boards :
Number crunching :
Doing Seti Research by ourselves
(Message 2036724)
Posted 8 Mar 2020 by Raistmer
Post: Well, to do smth useful there should be new approach to search. New patterns. New freq ranges. Maybe even whole new spectrum band (like optical SETI). And skilled professional to define such patterns. That's hard part. And then definitely some new form of distributed processing can be formed. As I see the main issue of current SETI@home search - it's hugely undermanned. Just devastately huge. Persons who need to deal exclusively with mentioned "hard part" spend lot of time for just system administration. |
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116)
Message boards :
Number crunching :
SETI orphans
(Message 2036723)
Posted 8 Mar 2020 by Raistmer
Post: By the last statistics there will by about 200 000 SETI orphan hosts. I like such idea! Maybe on different projects but the same team, SETI Orphans :) Would be the honour to participate ! P.S. my personal choice would be Einstein@home as closest in spirit one. Will see if it can feed all my different devices. Not compatible ones will search for new targets... |
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117)
Message boards :
Number crunching :
Suggestions/Comments for a SETI@home v3
(Message 2036722)
Posted 8 Mar 2020 by Raistmer
Post: We have 20 years experience with s@h running on BOINC (s@h 'v2')... All you proposed and something more! |
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118)
Message boards :
Number crunching :
20th Anniversary T-shirts
(Message 2036721)
Posted 8 Mar 2020 by Raistmer
Post: Definitely should do a +++!!!! |
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119)
Message boards :
News :
SETI@home hibernation
(Message 2036714)
Posted 8 Mar 2020 by Raistmer
Post: Well, I hope SETI boards will alive still. Would be good if SETI core team will still post updates from time to time on Nebula or alternative SETI projects. And maybe some volunteer involvment would be still possible in some new form. |
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120)
Message boards :
News :
SETI@home hibernation
(Message 2036713)
Posted 8 Mar 2020 by Raistmer
Post: Oops...... We're excited to finish up our original science project, and we look forward to what comes next. It should be new search with new types of patterns and new freq. bands. |
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SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.