Description Usage Arguments Details Value Examples
Retrieves "DList"
data distributed as chunks.
1 |
x |
a |
keys |
logical; should only keys be retrieved from chunks?
Default: |
n |
an integer specifying the number of chunks to be read. |
names |
logical; should the return value be a named list?
Default: |
DGather()
is similar to an MPI_GATHER
(see
http://www.mpi-forum.org/docs/mpi-3.1/mpi31-report/node103.htm#Node103)
where: “[...] each process (root process included) sends the
contents of its send buffer to the root process. The root process
receives the messages and stores them in rank order.” For
"DList"
objects DGather()
will gather data
contained in chunks possibly distributed on a cluster of workstations
and store it in a (possibly named) list
. Note that
depending of the size of the data, the resulting list may not fit into
memory.
A (named) list.
1 2 3 4 5 6 7 8 |
$`DSL-20181211-141430-epqwwrwytx/chunk-2d5440b0a8c5`
$`DSL-20181211-141430-epqwwrwytx/chunk-2d5440b0a8c5`[[1]]
[1] "This is the first line."
$`DSL-20181211-141430-epqwwrwytx/chunk-2d5440b0a8c5`[[2]]
[1] "Now, the second line."
[1] "line1" "line2"
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 319672 17.1 592000 31.7 398644 21.3
Vcells 593506 4.6 1208034 9.3 1021245 7.8
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