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docs.it4i.cz
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39a615a7
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2 weeks ago
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Jan Siwiec
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@@ -4,7 +4,7 @@
In many cases, it is useful to submit a huge number of computational jobs into the Slurm queue system.
A huge number of (small) jobs is one of the most effective ways to execute embarrassingly parallel calculations,
achieving the best runtime, throughput, and computer utilization. This is called
the
**Capacity Computing**
achieving the best runtime, throughput, and computer utilization. This is called
**Capacity Computing**
However, executing a huge number of jobs via the Slurm queue may strain the system. This strain may
result in slow response to commands, inefficient scheduling, and overall degradation of performance
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@@ -15,12 +15,12 @@ There are two primary scenarios:
1.
Number of jobs < 1500,
**and**
the jobs are able to utilize one or more
**full**
nodes:
Use
[
**Job arrays**
][
1
]
.
The Job array allows to su
m
bmit and control up to 1500 jobs (tasks) in one packet. Several job arrays may be sumitted.
The Job array allows to submit and control up to 1500 jobs (tasks) in one packet. Several job arrays may be su
b
mitted.
2.
Number of jobs >> 1500,
**or**
the jobs only utilze a
**few cores/accelerators**
each:
2.
Number of jobs >> 1500,
**or**
the jobs only util
i
ze a
**few cores/accelerators**
each:
Use
[
**HyperQueue**
][
2
]
.
HyperQueue can help efficiently load balance a very large number of jobs (tasks) amongst available computing nodes.
HyperQueue may be also used if you have dependen
i
ces among the jobs.
HyperQueue may be also used if you have dependenc
i
es among the jobs.
[
1
]:
job-arrays.md
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