ducc_submit --help will give you a list of possibilities. Of interest may be --environment, --driver_jvm_args and --process_jvm_args among others.
Lou. On Tue, Nov 24, 2015 at 8:05 PM, Yi-Wen Liu <[email protected]> wrote: > Hello, > > I see, thanks for your reply! > > I just recall another question, is that possible to specify configuration > file for my project running on ducc, in the job file? > > Thanks, > Yi-Wen > > On Tue, Nov 24, 2015 at 3:15 PM, Lou DeGenaro <[email protected]> > wrote: > > > Yi-Wen, > > > > Privileged ducc_ling is for situations where sharing of resources and > data > > privacy are desired. For example, user "ducc" would use ducc_ling to > > assume the identity of the job submitter in order to gain access to read > > and write. This is useful on large compute clusters with many users. > When > > testing on my small simulated cluster I do not use a privileged > ducc_ling. > > > > Your second question is harder to answer without more information. Was > > there any contention for resources (CPU,disk)? Look at the Work Items > tab > > for the longest and shortest jobs and see if you notice any pattern. > Were > > work items slow on a particular node? Were delivery times longer? Were > > process times longer for a few or all the work items? Was there a lot of > > pre-emption (two or more jobs running at once)? Was there an equal > amount > > of resource (e.g. number of processes) allocated to each job? > > > > Lou. > > > > On Tue, Nov 24, 2015 at 5:35 PM, Yi-Wen Liu <[email protected]> wrote: > > > > > Hello, > > > > > > I have some small questions about DUCC, most of them are not technical, > > > hope somebody can help me out, thanks! > > > > > > From https://cwiki.apache.org/confluence/display/UIMA/DUCC, it > includes > > a > > > step "Privileged ducc_ling". > > > But if I ignore this step, DUCC still works well, I am wondering what > is > > > this step especially for? > > > > > > The second question is, I submitted same input files many times, and > the > > > completed time were very different, range from 2 min to 7 min. > > > While I was running DUCC I didn't let the computer busy, and one job > > > running at a time. > > > Is there a reason why it sometimes finished early sometimes it took > such > > a > > > long time to complete the job? > > > > > > Thanks, > > > Yi-Wen > > > > > >
