Fixing issue with intel compiler (see #94)

24 jobs for P2-multigrid-experiments in 49 minutes and 27 seconds (queued for 3 seconds)
Name Stage Failure
failed
benchmark_intel17 Test There has been a runner system failure, please try again
Running with gitlab-runner 11.8.0 (4745a6f3)
on i10swarm14-benchmark 7ec8fbf1
Using Docker executor with image i10git.cs.fau.de:5005/walberla/buildenvs/intel:17 ...
Pulling docker image i10git.cs.fau.de:5005/walberla/buildenvs/intel:17 ...
Using docker image sha256:e8844ad887f8cf318f3f909c49000e8a13bd66c796ababc1b905b22b1a03d389 for i10git.cs.fau.de:5005/walberla/buildenvs/intel:17 ...
ERROR: Job failed (system failure): Error response from daemon: Unknown runtime specified nvidia (executor_docker.go:924:0s)
failed
benchmark_gcc7 Test There has been a runner system failure, please try again
Running with gitlab-runner 11.8.0 (4745a6f3)
on i10swarm14-benchmark 7ec8fbf1
Using Docker executor with image i10git.cs.fau.de:5005/walberla/buildenvs/gcc:7 ...
Pulling docker image i10git.cs.fau.de:5005/walberla/buildenvs/gcc:7 ...
Using docker image sha256:77d97af195f1b896b33af47913d10a4d06e8b4399f4ed25c2b77e11072a870e5 for i10git.cs.fau.de:5005/walberla/buildenvs/gcc:7 ...
ERROR: Job failed (system failure): Error response from daemon: Unknown runtime specified nvidia (executor_docker.go:924:0s)
failed
benchmark_clang6 Test There has been a runner system failure, please try again
Running with gitlab-runner 11.8.0 (4745a6f3)
on i10swarm14-benchmark 7ec8fbf1
Using Docker executor with image i10git.cs.fau.de:5005/walberla/buildenvs/clang:6.0 ...
Pulling docker image i10git.cs.fau.de:5005/walberla/buildenvs/clang:6.0 ...
Using docker image sha256:5f89c3d21caef09721216907f322ced39c79d2d3a23003fa0356139ab9822f9a for i10git.cs.fau.de:5005/walberla/buildenvs/clang:6.0 ...
ERROR: Job failed (system failure): Error response from daemon: Unknown runtime specified nvidia (executor_docker.go:924:0s)