You have two options for managing those dependencies, as I see it)
1. you use SLURM’s native job dependencies, but this requires you to create
a build script for SLURM
2. You use make to submit the jobs, and take advantage of the -j flag to
make it run lots of tasks at once, just use a job starter prefix to prefix
tasks you want run under SLURM with srun
The first approach will get the jobs run soonest. The second approach is a bit
of a hack, and it means that the dependent jobs don’t get submitted until the
previous jobs have finished, which isn’t ideal, but it does work, and it meets
your requirement of having a single build process that works both with and
without SLURM:
JOBSTARTER=srun -c 1 -t 00:05:00
SLEEP=60
all: jobC.out
clean:
rm -f job[ABC].out
jobA.out:
$(JOBSTARTER) sh -c "sleep $(SLEEP); echo done > $@"
jobB.out:
$(JOBSTARTER) sh -c "sleep $(SLEEP); echo done > $@"
jobC.out: jobA.out jobB.out
$(JOBSTARTER) sh -c "echo done > $@"
When you want to run it interactively, you set JOBSTARTER to be empty,
otherwise you use some suitable srun command to run the tasks under SLURM, and
the above makefile does this:
$ make -j
srun -c 1 -t 00:01:00 sh -c "sleep 60; echo done > jobA.out"
srun -c 1 -t 00:01:00 sh -c "sleep 60; echo done > jobB.out"
srun: job 13324201 queued and waiting for resources
srun: job 13324202 queued and waiting for resources
srun: job 13324201 has been allocated resources
srun: job 13324202 has been allocated resources
srun -c 1 -t 00:01:00 sh -c "echo done > jobC.out"
srun: job 13324220 queued and waiting for resources
srun: job 13324220 has been allocated resources
Regards,
Tim
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Tim Cutts
Scientific Computing Platform Lead
AstraZeneca
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From: Duane Ellis via slurm-users <[email protected]>
Date: Sunday, 9 June 2024 at 15:50
To: [email protected] <[email protected]>
Subject: [slurm-users] Software builds using slurm
I have been lurking here for a while hoping to see some examples that would
help but have not fit several months
We have a slurm system setup for xilnix FPGA builds (hdl) I want to use this
for sw builds too
What I seem to see is slurm talks about cpus, GPUs and memory etc I am looking
for a “run my make file (or shell script) on any available node”
In our case we have 3 top level jobs A B and C
These can all run in parallel and are independent (ie bootloader, linux kernel,
and the Linux root file system via buildroot)
Job A (boot) is actually about 7 small builds that are independent
I am looking for a means to fork n jobs (ie job A B and C above) across the
cluster and wait/collect the std output of those n jobs and the exit status
Job A would then fork and build 7 to 8 sub jobs
When they are done it would assemble the result into what Xilinix calls boot.bin
Job B is a Linux kernel build
Job C is buildroot so there are several (n=50) smaller builds ie bash,
busybody, and other tools like python for the target agian each of these can be
executed in parallel
Really do not (cannot) re architect my build to be a slurm only build because
it also need to be able to run without slurm ie build everything on my laptop
without slurm present
In that case the jobs would run serially and take an hour or so the hope is by
parallelizing the sw build jobs our overall cycle time will improve
It would also be nice if the slurm cluster would adapt to the available nodes
automatically
Our hope is we can run our lab pcs as duel boot they normally boot windows but
we can duel boot them into Linux and they become a compile node and auto join
the cluster and the cluster sees them as going off line when somebody reboots
the machine back to windows
Sent from my iPhone
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