The mpi4py problem

Hi, nice work. I am really interested in your work, and new to semantic segmentation. When I run the code torchpack dist-run -np 1 python train.py configs/semantic_kitti/spvcnn/cr0p5.yaml the system return this: `Synopsis: mpirun [options] <app> mpirun [options] <where> <program> [<prog args>]

Description: Start an MPI application in LAM/MPI.

Notes: [options] Zero or more of the options listed below <app> LAM/MPI appschema <where> List of LAM nodes and/or CPUs (examples below) <program> Must be a LAM/MPI program that either invokes MPI_INIT or has exactly one of its children invoke MPI_INIT <prog args> Optional list of command line arguments to <program>

Options: -c <num> Run <num> copies of <program> (same as -np) -client <rank> <host>:<port> Run IMPI job; connect to the IMPI server <host> at port <port> as IMPI client number <rank> -D Change current working directory of new processes to the directory where the executable resides -f Do not open stdio descriptors -ger Turn on GER mode -h Print this help message -l Force line-buffered output -lamd Use LAM daemon (LAMD) mode (opposite of -c2c) -nger Turn off GER mode -np <num> Run <num> copies of <program> (same as -c) -nx Don’t export LAM_MPI_* environment variables -O Universe is homogeneous -pty / -npty Use/don’t use pseudo terminals when stdout is a tty -s <nodeid> Load <program> from node <nodeid> -sigs / -nsigs Catch/don’t catch signals in MPI application -ssi <n> <arg> Set environment variable LAM_MPI_SSI_<n>=<arg> -toff Enable tracing with generation initially off -ton, -t Enable tracing with generation initially on -tv Launch processes under TotalView Debugger -v Be verbose -w / -nw Wait/don’t wait for application to complete -wd <dir> Change current working directory of new processes to <dir> -x <envlist> Export environment vars in <envlist>

Nodes: n<list>, e.g., n0-3,5 CPUS: c<list>, e.g., c0-3,5 Extras: h (local node), o (origin node), N (all nodes), C (all CPUs)

Examples: mpirun n0-7 prog1 Executes “prog1” on nodes 0 through 7.

            mpirun -lamd -x FOO=bar,DISPLAY N prog2
            Executes "prog2" on all nodes using the LAMD RPI.  
            In the environment of each process, set FOO to the value
            "bar", and set DISPLAY to the current value.

            mpirun n0 N prog3
            Run "prog3" on node 0, *and* all nodes.  This executes *2*
            copies on n0.

            mpirun C prog4 arg1 arg2
            Run "prog4" on each available CPU with command line
            arguments of "arg1" and "arg2".  If each node has a
            CPU count of 1, the "C" is equivalent to "N".  If at
            least one node has a CPU count greater than 1, LAM
            will run neighboring ranks of MPI_COMM_WORLD on that
            node.  For example, if node 0 has a CPU count of 4 and
            node 1 has a CPU count of 2, "prog4" will have
            MPI_COMM_WORLD ranks 0 through 3 on n0, and ranks 4
            and 5 on n1.

            mpirun c0 C prog5
            Similar to the "prog3" example above, this runs "prog5"
            on CPU 0 *and* on each available CPU.  This executes
            *2* copies on the node where CPU 0 is (i.e., n0).
            This is probably not a useful use of the "C" notation;
            it is only shown here for an example.

Defaults: -c2c -w -pty -nger -nsigs

And when I install mpi4py, and then run the code above, the system return:[mpiexec@eyre-MS-7C35] match_arg (utils/args/args.c:163): unrecognized argument allow-run-as-root [mpiexec@eyre-MS-7C35] HYDU_parse_array (utils/args/args.c:178): argument matching returned error [mpiexec@eyre-MS-7C35] parse_args (ui/mpich/utils.c:1642): error parsing input array [mpiexec@eyre-MS-7C35] HYD_uii_mpx_get_parameters (ui/mpich/utils.c:1694): unable to parse user arguments [mpiexec@eyre-MS-7C35] main (ui/mpich/mpiexec.c:148): error parsing parameters ` Also, I am wandering where is the ‘dataset’ folder located?

[CoolLoveBoy]

I have the same question, what can I do to solve the problem? [mpiexec@AcerNitro] match_arg (utils/args/args.c:163): unrecognized argument allow-run-as-root [mpiexec@AcerNitro] HYDU_parse_array (utils/args/args.c:178): argument matching returned error [mpiexec@AcerNitro] parse_args (ui/mpich/utils.c:1642): error parsing input array [mpiexec@AcerNitro] HYD_uii_mpx_get_parameters (ui/mpich/utils.c:1694): unable to parse user arguments [mpiexec@AcerNitro] main (ui/mpich/mpiexec.c:148): error parsing parameters

[zhijian-liu]

You may follow the instructions at https://www.open-mpi.org/faq/?category=building to install OpenMPI from source.