My record with GNU Parallel

[Ole Tange]

Today I ran:

  seq 1000000 | parallel --pipe --tee wc ::: {1..13000}

This feeds 6.8 MB to 13000 wc's running in parallel (+ 26000 helper
processes) giving a total of 39000 parallel processes. It took 15 GB
RAM and did not feel very fast. But it worked correctly.

It also required 'ulimit -u 40000; ulimit -n 100000'.

Have you used GNU Parallel to push your system to the limit?
What is your record?

/Ole