Re: [Neo] Something fun to try in neo4j : collatz conjecture
Cool, let us know how things work out with the full dataset! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Thu, Mar 25, 2010 at 8:58 PM, Laurent Laborde kerdez...@gmail.com wrote: my new ssd (Intel X25-V, 40GB, 114€) is finally installed. i continue my collatz number crunching from 90 millions to 100 millions. Result : i'm cpu-bound again (1 core at 100%) when the base was small enough to fit in ram it took ~10s to compute a block of 10k. now the db is ~22Go and it took more than a mn to compute a block of 10k on the raptor 10krpm. i moved the base to the ssd, then started the computation again. I'm back to ~10s per 10k. i'm running the windows monitor, while computing i have a mix of : - 1.5 MB/s read - 2.5 MB/s write The queue length on the ssd is at ~10% (while it was, of course, 100% on the raptor). A side note : When moving the DB from the raptor to the SSD, the ssd was the bottlenack, but it make sense : It's faster to sequentially read from a 10krpm than sequentially write on a cheap SSD. :) conclusion : TOTALLY ROCKS \o/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
my new ssd (Intel X25-V, 40GB, 114€) is finally installed. i continue my collatz number crunching from 90 millions to 100 millions. Result : i'm cpu-bound again (1 core at 100%) when the base was small enough to fit in ram it took ~10s to compute a block of 10k. now the db is ~22Go and it took more than a mn to compute a block of 10k on the raptor 10krpm. i moved the base to the ssd, then started the computation again. I'm back to ~10s per 10k. i'm running the windows monitor, while computing i have a mix of : - 1.5 MB/s read - 2.5 MB/s write The queue length on the ssd is at ~10% (while it was, of course, 100% on the raptor). A side note : When moving the DB from the raptor to the SSD, the ssd was the bottlenack, but it make sense : It's faster to sequentially read from a 10krpm than sequentially write on a cheap SSD. :) conclusion : TOTALLY ROCKS \o/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
nope. The LuceneIndexBatchInserter is designed for being performant when inserting large amounts of data with minimal lookups from the index during that time. problem : i do a lot of lookup while inserting :) -- Ker2x On Tue, Mar 23, 2010 at 10:43 AM, Peter Neubauer neubauer.pe...@gmail.com wrote: Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Awh, kinda not very fast inserting then. From looking at the code, this kinda sux for fast inserting since you need to go in and out of indexes. Not sure how to speed that up. Could you keep some of the index in memory maybe? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 23, 2010 at 10:49 AM, Laurent Laborde kerdez...@gmail.com wrote: nope. The LuceneIndexBatchInserter is designed for being performant when inserting large amounts of data with minimal lookups from the index during that time. problem : i do a lot of lookup while inserting :) -- Ker2x On Tue, Mar 23, 2010 at 10:43 AM, Peter Neubauer neubauer.pe...@gmail.com wrote: Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Why not use a graph based index? Properly structured it should provide fast reads all the time (property structured kind-of means you have the most likely reads in cache, which is dependant on the type of data). On Tue, Mar 23, 2010 at 10:56 AM, Peter Neubauer neubauer.pe...@gmail.comwrote: Awh, kinda not very fast inserting then. From looking at the code, this kinda sux for fast inserting since you need to go in and out of indexes. Not sure how to speed that up. Could you keep some of the index in memory maybe? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 23, 2010 at 10:49 AM, Laurent Laborde kerdez...@gmail.com wrote: nope. The LuceneIndexBatchInserter is designed for being performant when inserting large amounts of data with minimal lookups from the index during that time. problem : i do a lot of lookup while inserting :) -- Ker2x On Tue, Mar 23, 2010 at 10:43 AM, Peter Neubauer neubauer.pe...@gmail.com wrote: Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
i will try and benchmark :) -- Ker2x On Tue, Mar 23, 2010 at 11:09 AM, Craig Taverner cr...@amanzi.com wrote: Why not use a graph based index? Properly structured it should provide fast reads all the time (property structured kind-of means you have the most likely reads in cache, which is dependant on the type of data). On Tue, Mar 23, 2010 at 10:56 AM, Peter Neubauer neubauer.pe...@gmail.comwrote: Awh, kinda not very fast inserting then. From looking at the code, this kinda sux for fast inserting since you need to go in and out of indexes. Not sure how to speed that up. Could you keep some of the index in memory maybe? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 23, 2010 at 10:49 AM, Laurent Laborde kerdez...@gmail.com wrote: nope. The LuceneIndexBatchInserter is designed for being performant when inserting large amounts of data with minimal lookups from the index during that time. problem : i do a lot of lookup while inserting :) -- Ker2x On Tue, Mar 23, 2010 at 10:43 AM, Peter Neubauer neubauer.pe...@gmail.com wrote: Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
i ordered a SSD Intel X25-V (114€) According to http://www.anandtech.com/storage/showdoc.aspx?i=3773 it's a very good one, considering the very low price (for a SSD). Not the best (of course), but still faster than my HDD Velociraptor 10krpm. 40GB (~30GB formated) should be enough for all my personnal neo4j needs. -- Ker2x On Tue, Mar 23, 2010 at 11:26 AM, Laurent Laborde kerdez...@gmail.com wrote: i will try and benchmark :) -- Ker2x On Tue, Mar 23, 2010 at 11:09 AM, Craig Taverner cr...@amanzi.com wrote: Why not use a graph based index? Properly structured it should provide fast reads all the time (property structured kind-of means you have the most likely reads in cache, which is dependant on the type of data). On Tue, Mar 23, 2010 at 10:56 AM, Peter Neubauer neubauer.pe...@gmail.comwrote: Awh, kinda not very fast inserting then. From looking at the code, this kinda sux for fast inserting since you need to go in and out of indexes. Not sure how to speed that up. Could you keep some of the index in memory maybe? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 23, 2010 at 10:49 AM, Laurent Laborde kerdez...@gmail.com wrote: nope. The LuceneIndexBatchInserter is designed for being performant when inserting large amounts of data with minimal lookups from the index during that time. problem : i do a lot of lookup while inserting :) -- Ker2x On Tue, Mar 23, 2010 at 10:43 AM, Peter Neubauer neubauer.pe...@gmail.com wrote: Laurent, have you looked at the BatchInserter for doing big initial populations? It is MUCH faster than the normal Neo4j transactional approach, see http://wiki.neo4j.org/content/Indexing_with_BatchInserter Would that help? Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Mon, Mar 22, 2010 at 11:35 PM, Laurent Laborde kerdez...@gmail.com wrote: On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
On Fri, Mar 19, 2010 at 10:20 AM, Laurent Laborde kerdez...@gmail.com wrote: thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) 3 days later, i'm still populating neo4j like a crazy, trying to compute the collatz conjecture up to 100 millions. i'm at 63.5 millions, but it's now much much slower than at the beginning. probably because of the insane numbers of index.getSingleNode on lucene on a growing index. i'm expecting something like a billion of node when it will reach 100 millions. the index is 6GB and the base is 9GB. The cpu usage is now ~10% instead of 25%, i have a grand total of 9+6 GB of data in the neo4j drectory with only 8GB on ram on my windows 7 i'm now (random) IO bound. My SATA velociraptor 10krpm is fighting at 1MB/s (not so bad; considering it's highly mixed R/W and purely random IO) time to buy a 32GB SSD :) -- Keru -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Very cool! A fast search gave me this thread: http://groups.google.com/group/view-theinfo/browse_thread/thread/731b82b961fd557a that might have some hints. Otherwise, we have collected a few options on http://wiki.neo4j.org/content/Visualization_options_for_graphs, feel free to add - specially Ubigraph seems to render larger graphs well from what they say, but it's not OSS. Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Thu, Mar 18, 2010 at 10:59 PM, Laurent Laborde kerdez...@gmail.com wrote: i quickly hacked an app to populate the neo4j database with the collatz conjecture graph. here it is http://github.com/ker2x/Collatz4Neo/blob/master/collatz4neo.java and the code is ugly, but it just works(c)(r)(tm) now the problem is to find a way to graph millions of nodes. :/ something like this could be nice : http://www.race.u-tokyo.ac.jp/~uchida/blogdata/dataset1_community_normal.png *hugs* -- Ker2x On Thu, Mar 18, 2010 at 3:20 PM, Peter Neubauer neubauer.pe...@gmail.com wrote: Still, very cool, and processing rocks! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 16, 2010 at 12:21 AM, Laurent Laborde kerdez...@gmail.com wrote: i totally forgot to say that it's jsut a proof of concept, this small app don't use neo4j -- Ker2x On Tue, Mar 16, 2010 at 12:19 AM, Laurent Laborde kerdez...@gmail.com wrote: i used processing : http://www.processing.org/ + the traer physic lib : http://www.cs.princeton.edu/~traer/physics/ -- Ker2x On Tue, Mar 16, 2010 at 12:14 AM, Mattias Persson matt...@neotechnology.com wrote: Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
thank you peter. Following the various link, i found http://www.cytoscape.org/ Look very promising !! i'll try this weekend :) -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Still, very cool, and processing rocks! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 16, 2010 at 12:21 AM, Laurent Laborde kerdez...@gmail.com wrote: i totally forgot to say that it's jsut a proof of concept, this small app don't use neo4j -- Ker2x On Tue, Mar 16, 2010 at 12:19 AM, Laurent Laborde kerdez...@gmail.com wrote: i used processing : http://www.processing.org/ + the traer physic lib : http://www.cs.princeton.edu/~traer/physics/ -- Ker2x On Tue, Mar 16, 2010 at 12:14 AM, Mattias Persson matt...@neotechnology.com wrote: Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
i quickly hacked an app to populate the neo4j database with the collatz conjecture graph. here it is http://github.com/ker2x/Collatz4Neo/blob/master/collatz4neo.java and the code is ugly, but it just works(c)(r)(tm) now the problem is to find a way to graph millions of nodes. :/ something like this could be nice : http://www.race.u-tokyo.ac.jp/~uchida/blogdata/dataset1_community_normal.png *hugs* -- Ker2x On Thu, Mar 18, 2010 at 3:20 PM, Peter Neubauer neubauer.pe...@gmail.com wrote: Still, very cool, and processing rocks! Cheers, /peter neubauer COO and Sales, Neo Technology GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.tinkerpop.com - Processing for Internet-scale graphs. http://www.thoughtmade.com - Scandinavias coolest Bring-a-Thing party. On Tue, Mar 16, 2010 at 12:21 AM, Laurent Laborde kerdez...@gmail.com wrote: i totally forgot to say that it's jsut a proof of concept, this small app don't use neo4j -- Ker2x On Tue, Mar 16, 2010 at 12:19 AM, Laurent Laborde kerdez...@gmail.com wrote: i used processing : http://www.processing.org/ + the traer physic lib : http://www.cs.princeton.edu/~traer/physics/ -- Ker2x On Tue, Mar 16, 2010 at 12:14 AM, Mattias Persson matt...@neotechnology.com wrote: Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
i used processing : http://www.processing.org/ + the traer physic lib : http://www.cs.princeton.edu/~traer/physics/ -- Ker2x On Tue, Mar 16, 2010 at 12:14 AM, Mattias Persson matt...@neotechnology.com wrote: Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo] Something fun to try in neo4j : collatz conjecture
i totally forgot to say that it's jsut a proof of concept, this small app don't use neo4j -- Ker2x On Tue, Mar 16, 2010 at 12:19 AM, Laurent Laborde kerdez...@gmail.com wrote: i used processing : http://www.processing.org/ + the traer physic lib : http://www.cs.princeton.edu/~traer/physics/ -- Ker2x On Tue, Mar 16, 2010 at 12:14 AM, Mattias Persson matt...@neotechnology.com wrote: Cool :) What library do you use to visualize the graph? 2010/3/16 Laurent Laborde kerdez...@gmail.com: On Mon, Mar 15, 2010 at 12:13 AM, Laurent Laborde kerdez...@gmail.com wrote: thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) i built a small version in processing (java applet) that do not scale to huge number, but it's fun : http://ker.endofinternet.net/img/collatz/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Mattias Persson, [matt...@neotechnology.com] Neo Technology, www.neotechnology.com ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo] Something fun to try in neo4j : collatz conjecture
thanks to xkcd, it just made me notice that exploring the collatz conjecture is just exploring a huge graph. http://xkcd.com/710/ If i have some spare-spare-spare-spare time, i'll try that. (and draw the graph) -- Laurent ker2x Laborde Sysadmin DBA at http://www.over-blog.com/ ___ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
