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...save the sparse matrix as common CSV file would take approx 70G and 99% being 0. I just don't think it's necessary or efficient to treat it as a dense matrix. It there anyway to deal with the vector length limit? Can I split the whole matrix into small ones and then do k-means? Thanks, Lishu [[alternative HTML version deleted]]

...ata.bin',descriptorfile='mydata.desc') I'm using doMC to register multicore. >library(doMC) >registerDoMC(cores=8) >ans<-bigkmeans(data,k) In system monitor, it seems only one thread running R. Is there anything I did wrong? Thanks in advance for any suggestions. Best, Lishu [[alternative HTML version deleted]]

hi, Olly Betts, Thank you for you answer. My xapian version is 1.2.8. Need I upgrade it to 1.4 if I want to build it with MSVC2017 x64? lishu at fiberhome.com From: Olly Betts Date: 2018-03-29 11:10 To: 李澍; xapian-discuss Subject: Re: how to build 64bit xapian using MSVC2017? On Tue, Mar 20, 2018 at 08:28:24PM +0000, Olly Betts wrote: > Related to this, the appveyor build is currently failing on git master. > Unfortunately the ch...

...;cl <- makeCluster(8,type="SOCK") >registerDoSNOW(cl) >ans <- bigkmeans(data,200,nstart = 30) There are 8 R processes but only 1 running. Is it because I have something misconfigured? Or is the bigkmeans do not support parallel? Thanks in advance to any advise. Regards, Lishu -- View this message in context: http://r.789695.n4.nabble.com/bigkmeans-not-parallel-tp4353036p4353036.html Sent from the R help mailing list archive at Nabble.com.

...> If you tell us what the error is, we might be able to help. But please > try with a RELEASE/1.4 snapshot rather than 1.2.8. > > -----原始邮件----- > > 发件人: "Olly Betts" <olly at survex.com> > > 发送时间: 2018-04-04 03:41:33 (星期三) > > 收件人: "李澍" <lishu at fiberhome.com> > > 抄送: xapian-discuss <xapian-discuss at lists.xapian.org> > > 主题: Re: Re: how to build 64bit xapian using MSVC2017? > > > > On Tue, Apr 03, 2018 at 03:21:24PM +0800, 李澍 wrote: > > > My xapian version is 1.2.8. > > > Need I upgr...

...o replace the WIN32 with the WIN64 in the source files, then compile all the source. But the query parser compiling failed. It seems the lemon.exe get a runtime error. Is there a official doc to describe the steps to build the 64bit xapian using MSVC2017? Thanks. lishu at fiberhome.com

On Tue, Mar 20, 2018 at 06:30:07PM +0000, Olly Betts wrote: > https://lists.xapian.org/pipermail/xapian-discuss/2018-January/009585.html Related to this, the appveyor build is currently failing on git master. Unfortunately the change at which is started to fail was the addition of the new "honey" backend, which doesn't narrow things down to a useful degree. I've checked over