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cluster:124 [2013/10/31 17:31] hmeij created |
cluster:124 [2013/10/31 17:56] hmeij |
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- | BLCR | + | \\ |
+ | **[[cluster: | ||
- | are modules loaded (done via / | + | ==== BLCR ==== |
+ | So we need a day of down time to switch file server functionality from greentail to sharptail. It would be nice if everybody did not loose any computational progress. | ||
+ | |||
+ | I've decided to support one checkpoint/ | ||
+ | |||
+ | BLCR consists of two kernel modules, some user-level libraries, and several command-line executables. No kernel patching is required. Modules are loading upon boot via / | ||
+ | |||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | |||
+ | First lets test on a node to grasp the concept. | ||
+ | |||
+ | < | ||
+ | |||
+ | # are modules loaded | ||
[hmeij@n33 blcr]$ lsmod | grep blcr | [hmeij@n33 blcr]$ lsmod | grep blcr | ||
blcr 115529 | blcr 115529 | ||
blcr_imports | blcr_imports | ||
- | set env | ||
- | | ||
- | | ||
+ | # set env | ||
+ | export PATH=/ | ||
+ | export LD_LIBRARY_PATH=/ | ||
+ | # is it all working | ||
[hmeij@n33 blcr]$ cr_checkpoint --help | [hmeij@n33 blcr]$ cr_checkpoint --help | ||
Usage: cr_checkpoint [options] ID | Usage: cr_checkpoint [options] ID | ||
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--version | --version | ||
... | ... | ||
+ | |||
+ | # and here is our application and output | ||
+ | [hmeij@n33 blcr]$ ./ | ||
+ | * | ||
+ | ** | ||
+ | *** | ||
+ | **** | ||
+ | ***** | ||
+ | ****** | ||
+ | ... | ||
+ | </ | ||
[hmeij@n33 blcr]$ cr_run ./ | [hmeij@n33 blcr]$ cr_run ./ | ||
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lrwxrwxrwx 1 hmeij its 40 Oct 31 11:06 1383231850.62322.shell -> | lrwxrwxrwx 1 hmeij its 40 Oct 31 11:06 1383231850.62322.shell -> | ||
/ | / | ||
+ | |||
+ | |||
+ | \\ | ||
+ | **[[cluster: | ||