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...> on Tue, 8 Sep 2020 10:40:24 +0200 writes: >>>>> Hugh Parsonage >>>>> on Tue, 8 Sep 2020 18:08:11 +1000 writes: >> I can only reproduce on Windows, but reliably (both 4.0.0 and 4.0.2): >> $> R --vanilla >> x <- c(0L, -2e9:2e9) >> # > Segmentation fault >> Tried to reproduce on Linux but the above worked as expected. Not an >> issue merely with the length of the vector; for example, x <- >> rep_len(1:10, 1e10) works, though the altrep vector must be long to >>...

...wrote: > Thanks Martin. On further testing, it seems that the segmentation > fault can only occur when the amount of obtainable memory is > sufficiently high. On my machine (admittedly with other processes > running): > > $ R --vanilla --max-mem-size=30G -e "x <- c(0L, -2e9:2e9)" > Segmentation fault > > $ R --vanilla --max-mem-size=29G -e "x <- c(0L, -2e9:2e9)" > Error: cannot allocate vector of size 14.9 Gb > Execution halted Unfortunately I don't have access to a Windows machine with enough memory to get to the point of failure...

I can only reproduce on Windows, but reliably (both 4.0.0 and 4.0.2): $> R --vanilla x <- c(0L, -2e9:2e9) # > Segmentation fault Tried to reproduce on Linux but the above worked as expected. Not an issue merely with the length of the vector; for example, x <- rep_len(1:10, 1e10) works, though the altrep vector must be long to reproduce: x <- c(0L, -1e9:1e9) #ok Segmentation faults oc...

Thanks Martin. On further testing, it seems that the segmentation fault can only occur when the amount of obtainable memory is sufficiently high. On my machine (admittedly with other processes running): $ R --vanilla --max-mem-size=30G -e "x <- c(0L, -2e9:2e9)" Segmentation fault $ R --vanilla --max-mem-size=29G -e "x <- c(0L, -2e9:2e9)" Error: cannot allocate vector of size 14.9 Gb Execution halted On Tue, 8 Sep 2020 at 18:52, Martin Maechler <maechler at stat.math.ethz.ch> wrote: > > >>>>> Martin Maec...

...>>> Hugh Parsonage >>>>>>> on Tue, 8 Sep 2020 18:08:11 +1000 writes: >> >> >> I can only reproduce on Windows, but reliably (both 4.0.0 and 4.0.2): >> >> >> $> R --vanilla >> >> x <- c(0L, -2e9:2e9) >> >> >> # > Segmentation fault >> >> >> Tried to reproduce on Linux but the above worked as expected. Not an >> >> issue merely with the length of the vector; for example, x <- >> >> rep_len(1:10, 1e10...

...in. On further testing, it seems that the segmentation > > fault can only occur when the amount of obtainable memory is > > sufficiently high. On my machine (admittedly with other processes > > running): > > > > $ R --vanilla --max-mem-size=30G -e "x <- c(0L, -2e9:2e9)" > > Segmentation fault > > > > $ R --vanilla --max-mem-size=29G -e "x <- c(0L, -2e9:2e9)" > > Error: cannot allocate vector of size 14.9 Gb > > Execution halted > > Unfortunately I don't have access to a Windows machine with enough &gt...

>>>>> Hugh Parsonage >>>>> on Tue, 8 Sep 2020 18:08:11 +1000 writes: > I can only reproduce on Windows, but reliably (both 4.0.0 and 4.0.2): > $> R --vanilla > x <- c(0L, -2e9:2e9) > # > Segmentation fault > Tried to reproduce on Linux but the above worked as expected. Not an > issue merely with the length of the vector; for example, x <- > rep_len(1:10, 1e10) works, though the altrep vector must be long to > reproduce: &gt...

...40:24 +0200 writes: > >>>>>> Hugh Parsonage >>>>>> on Tue, 8 Sep 2020 18:08:11 +1000 writes: > > >> I can only reproduce on Windows, but reliably (both 4.0.0 and 4.0.2): > > >> $> R --vanilla > >> x <- c(0L, -2e9:2e9) > > >> # > Segmentation fault > > >> Tried to reproduce on Linux but the above worked as expected. Not an > >> issue merely with the length of the vector; for example, x <- > >> rep_len(1:10, 1e10) works, though the altrep vector must...

...testing, it seems that the segmentation >>> fault can only occur when the amount of obtainable memory is >>> sufficiently high. On my machine (admittedly with other processes >>> running): >>> >>> $ R --vanilla --max-mem-size=30G -e "x <- c(0L, -2e9:2e9)" >>> Segmentation fault >>> >>> $ R --vanilla --max-mem-size=29G -e "x <- c(0L, -2e9:2e9)" >>> Error: cannot allocate vector of size 14.9 Gb >>> Execution halted >> Unfortunately I don't have access to a Windows machine w...

I get ties in output from runif() when I generate as few as 10^5 variates and get quite a lot when I generate 10^6. Is this expected?? I haven't seen any duplication with rnorm(10^6), but see varying amounts of duplication using rexp(), rbeta() and rgamma(). I would have thought that there'd be enough precision that one wouldn't get ties until generating samples larger than this..

...body = paste0("SETLENGTH(x, 1);", "SET_TRUELENGTH(x, 1);", "return(R_NilValue);")) ## create a large vector that only fits into memory once x <- 1 : 2e9 ## shrink it shrinkVector(x) ## shrinking seems to have worked print(length(x) == 1) # [1] TRUE print(object.size(x)) # 48 bytes ## but I can't reuse the memory for a large x2: x2 <- 1 : 2e8 # Error: cannot allocate vector of size 762.9 Mb ## if I remove x, it works rm(x) gc() x2 <- 1 : 2...

...uot;2001-01-03" ... Many thanks in advance, Jacob Etches Doctoral candidate, Epidemiology Program Department of Public Health Sciences, University of Toronto Faculty of Medicine Research Associate Institute for Work & Health 800-481 University Avenue, Toronto, Ontario, Canada M5G 2E9 T: 416.927.2027 ext. 2290 F: 416.927.4167 jetches at iwh.on.ca www.iwh.on.ca This e-mail may contain confidential information for the sol...{{dropped}}

...f several data points measured on the same subject, or from the same plot over time. Any perspectives will be welcome, Andy Park (Assistant Professor) Centre for Forest Interdisciplinary Research (CFIR), Department of Biology, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba, R3B 2E9, Canada Phone: (204) 786-9407

...39;dclone' supports parallel computations via the 'snow' package. Have fun, Peter Peter Solymos Alberta Biodiversity Monitoring Institute and Boreal Avian Modelling project Department of Biological Sciences CW 405, Biological Sciences Bldg University of Alberta Edmonton, Alberta, T6G 2E9, Canada Phone: 780.492.8534 Fax: 780.492.7635 email <- paste("solymos", "ualberta.ca", sep = "@") http://www.abmi.ca http://www.borealbirds.ca http://sites.google.com/site/psolymos -- Main functions in the 'dclone' package include: * dclone, dcdim: clonin...

...ut I am not a good programmer and I am a little bit concerned with efficiency. Thank you for any information, -- Jos?-Manuel Blanco-Moreno ----------------------------------- Department of Biological Sciences University of Alberta CW-405 Biological Sciences Bldg. Edmonton, Alberta, Canada T6G 2E9 ----------------------------------- Phone: (1) 780 492 3289 Fax: (1) 780 492 9457

...r.get("superpose.symbol") $col[1:4]) ) ) Doctoral candidate, Epidemiology Program Department of Public Health Sciences, University of Toronto Faculty of Medicine Research Associate Institute for Work & Health 800-481 University Avenue, Toronto, Ontario, Canada M5G 2E9 T: 416.927.2027 ext. 2290 F: 416.927.4167 jetches at iwh.on.ca www.iwh.on.ca

...39;dclone' supports parallel computations via the 'snow' package. Have fun, Peter Peter Solymos Alberta Biodiversity Monitoring Institute and Boreal Avian Modelling project Department of Biological Sciences CW 405, Biological Sciences Bldg University of Alberta Edmonton, Alberta, T6G 2E9, Canada Phone: 780.492.8534 Fax: 780.492.7635 email <- paste("solymos", "ualberta.ca", sep = "@") http://www.abmi.ca http://www.borealbirds.ca http://sites.google.com/site/psolymos -- Main functions in the 'dclone' package include: * dclone, dcdim: clonin...

...ion, and to Khurram Nadeem for catching the most annoying bugs on the test run. Cheers, Peter Peter Solymos Alberta Biodiversity Monitoring Institute and Boreal Avian Modelling project Department of Biological Sciences CW 405, Biological Sciences Bldg University of Alberta Edmonton, Alberta, T6G 2E9, Canada Phone: 780.492.8534 Fax: 780.492.7635 email <- paste("solymos", "ualberta.ca", sep = "@") http://www.abmi.ca http://www.borealbirds.ca http://sites.google.com/site/psolymos _______________________________________________ R-packages mailing list R-packages a...

...ion, and to Khurram Nadeem for catching the most annoying bugs on the test run. Cheers, Peter Peter Solymos Alberta Biodiversity Monitoring Institute and Boreal Avian Modelling project Department of Biological Sciences CW 405, Biological Sciences Bldg University of Alberta Edmonton, Alberta, T6G 2E9, Canada Phone: 780.492.8534 Fax: 780.492.7635 email <- paste("solymos", "ualberta.ca", sep = "@") http://www.abmi.ca http://www.borealbirds.ca http://sites.google.com/site/psolymos _______________________________________________ R-packages mailing list R-packages a...

...en used to indicate sizes in kilobits, megabits and gigabits, e.g. > format(structure(2e3, class="object_size"), units="auto") [1] "2 Kb" > format(structure(2e6, class="object_size"), units="auto") [1] "1.9 Mb" > format(structure(2e9, class="object_size"), units="auto") [1] "1.9 Gb" > format(structure(2e12, class="object_size"), units="auto") [1] "1862.6 Gb" BTW, I suggest to add support for terabytes too (and maybe beyond); we're soon/already there. TOPIC #2...