Do you think executing mpirun as a normal user will work? On Thu, 25 Feb 2021, 21:02 LINUS FERNANDES, <linus.fernan...@gmail.com> wrote:
> I'm not so much of a networking person either. > But I'm able to get Apache working on a different port 8080. Is that > useful? > > On Thu, 25 Feb 2021, 20:17 Jeff Squyres (jsquyres), <jsquy...@cisco.com> > wrote: > >> I don't know how many people on this list will be familiar with Termux or >> Arch Linux. From a quick Google, it looks like Termux is an Android >> emulator (that runs on Android? That doesn't make sense to me, but I'm >> wholly unfamiliar with that ecosystem, so I don't have the background / >> grok the context) and provides some kind of Linux environment. And on top >> of that, you're installing Arch Linux. Is that correct? >> >> If that's anywhere close to correct, it sounds like there could be >> multiple layers of virtualization there, and that could lead to wonkiness >> in the emulation of the IP stack. >> >> I do note that the only interface it looks like Open MPI could use is >> rmnet_data0, but that's in an UNKNOWN state: >> >> 5: rmnet_data0: <UP,LOWER_UP> mtu 1500 qdisc htb state UNKNOWN group >> default qlen 1000 >> link/[530] >> inet 10.140.58.138/30 scope global rmnet_data0 >> valid_lft forever preferred_lft forever >> inet6 fe80::93a5:ad99:4660:adc4/64 scope link >> valid_lft forever preferred_lft forever >> >> Errno==13 is EACCESS, which generically translates to "permission >> denied". Since you're running as root, this suggests that something >> outside of your local environment (e.g., outside of that immediate layer of >> virtualization) is preventing Open MPI from making that >> ioctl(SIOCGIFHWADDR) call (all that call is trying to do is discover the >> MAC address of that interface). >> >> Indeed, it looks like rmnet_data0 somehow doesn't have a MAC address...? >> >> rmnet_data0: flags=65<UP,RUNNING> mtu 1500 >> inet 10.140.58.138 netmask 255.255.255.252 >> inet6 fe80::93a5:ad99:4660:adc4 prefixlen 64 scopeid 0x20<link> >> unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen >> 1000 (UNSPEC) >> RX packets 416796 bytes 376287723 (358.8 MiB) >> RX errors 0 dropped 0 overruns 0 frame 0 >> TX packets 318293 bytes 69933666 (66.6 MiB) >> TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >> >> That's... weird. I don't know the details of this network stack; it's >> somewhat outside the bounds of "normal" IP-based networking if there's no >> MAC address. As such, it doesn't surprise me that -- given that one of >> Open MPI's core assumptions fails -- Open MPI fails / refuses to run. >> >> I don't know if anyone has tried to run Open MPI in such a virtualized >> environment before. >> >> >> >> >> On Feb 25, 2021, at 6:04 AM, LINUS FERNANDES via users < >> users@lists.open-mpi.org> wrote: >> >> So the OpenMPI version on Arch Linux can't be made operational? >> >> On Thu, 25 Feb 2021, 15:43 LINUS FERNANDES, <linus.fernan...@gmail.com> >> wrote: >> >>> Nope. None of the commands exist. So no, I'd say. >>> >>> On Thu, 25 Feb 2021, 15:11 Gilles Gouaillardet via users, < >>> users@lists.open-mpi.org> wrote: >>> >>>> >>>> https://www.letmegooglethat.com/?q=how+to+check+if+selinux+is+enabled&l=1 >>>> >>>> On Thu, Feb 25, 2021 at 6:15 PM LINUS FERNANDES via users >>>> <users@lists.open-mpi.org> wrote: >>>> > >>>> > How do I know that? I'm not a Linux expert. I simply want to get >>>> OpenMPI running on Arch Linux so that I can test out their Java wrappers >>>> which I obviously can't on Termux since it doesn't support OpenJDK. >>>> > >>>> > On Thu, 25 Feb 2021, 13:37 Gilles Gouaillardet via users, < >>>> users@lists.open-mpi.org> wrote: >>>> >> >>>> >> Is SELinux running on ArchLinux under Termux? >>>> >> >>>> >> On 2/25/2021 4:36 PM, LINUS FERNANDES via users wrote: >>>> >> > Yes, I did not receive this in my inbox since I set to receive >>>> digest. >>>> >> > >>>> >> > -------- >>>> >> > ifconfig output: >>>> >> > >>>> >> > dummy0: flags=195<UP,BROADCAST,RUNNING,NOARP> mtu 1500 >>>> >> > inet6 fe80::38a0:1bff:fe81:d4f5 prefixlen 64 scopeid >>>> 0x20<link> >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 0 (UNSPEC) >>>> >> > RX packets 0 bytes 0 (0.0 B) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 3 bytes 210 (210.0 B) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 >>>> >> > inet 127.0.0.1 netmask 255.0.0.0 >>>> >> > inet6 ::1 prefixlen 128 scopeid 0x10<host> >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 0 (UNSPEC) >>>> >> > RX packets 17247 bytes 2062939 (1.9 MiB) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 17247 bytes 2062939 (1.9 MiB) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > p2p0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 1000 (UNSPEC) >>>> >> > RX packets 0 bytes 0 (0.0 B) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 0 bytes 0 (0.0 B) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > rmnet_data0: flags=65<UP,RUNNING> mtu 1500 >>>> >> > inet 10.140.58.138 netmask 255.255.255.252 >>>> >> > inet6 fe80::93a5:ad99:4660:adc4 prefixlen 64 scopeid >>>> 0x20<link> >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 1000 (UNSPEC) >>>> >> > RX packets 416796 bytes 376287723 (358.8 MiB) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 318293 bytes 69933666 (66.6 MiB) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > rmnet_data7: flags=65<UP,RUNNING> mtu 2000 >>>> >> > inet6 fe80::a6b7:c914:44de:639 prefixlen 64 scopeid >>>> 0x20<link> >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 1000 (UNSPEC) >>>> >> > RX packets 8 bytes 620 (620.0 B) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 10 bytes 752 (752.0 B) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > rmnet_ipa0: flags=65<UP,RUNNING> mtu 2000 >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 1000 (UNSPEC) >>>> >> > RX packets 222785 bytes 381290027 (363.6 MiB) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 318303 bytes 69934418 (66.6 MiB) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > wlan0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500 >>>> >> > unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 >>>> >> > txqueuelen 1000 (UNSPEC) >>>> >> > RX packets 650238 bytes 739939859 (705.6 MiB) >>>> >> > RX errors 0 dropped 0 overruns 0 frame 0 >>>> >> > TX packets 408284 bytes 63728624 (60.7 MiB) >>>> >> > TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 >>>> >> > >>>> >> > >>>> >> > ----- >>>> >> > ip addr output: >>>> >> > >>>> >> > 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN >>>> >> > group default >>>> >> > link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 >>>> >> > inet 127.0.0.1/8 <http://127.0.0.1/8> scope host lo >>>> >> > valid_lft forever preferred_lft forever >>>> >> > inet6 ::1/128 scope host >>>> >> > valid_lft forever preferred_lft forever >>>> >> > 2: dummy0: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue >>>> state >>>> >> > UNKNOWN group default >>>> >> > link/ether 3a:a0:1b:81:d4:f5 brd ff:ff:ff:ff:ff:ff >>>> >> > inet6 fe80::38a0:1bff:fe81:d4f5/64 scope link >>>> >> > valid_lft forever preferred_lft forever >>>> >> > 3: sit0@NONE: <NOARP> mtu 1480 qdisc noop state DOWN group default >>>> >> > link/sit 0.0.0.0 brd 0.0.0.0 >>>> >> > 4: rmnet_ipa0: <UP,LOWER_UP> mtu 2000 qdisc pfifo_fast state >>>> UNKNOWN >>>> >> > group default qlen 1000 >>>> >> > link/[530] >>>> >> > 5: rmnet_data0: <UP,LOWER_UP> mtu 1500 qdisc htb state UNKNOWN >>>> group >>>> >> > default qlen 1000 >>>> >> > link/[530] >>>> >> > inet 10.140.58.138/30 <http://10.140.58.138/30> scope global >>>> >> > rmnet_data0 >>>> >> > valid_lft forever preferred_lft forever >>>> >> > inet6 fe80::93a5:ad99:4660:adc4/64 scope link >>>> >> > valid_lft forever preferred_lft forever >>>> >> > 6: rmnet_data1: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 7: rmnet_data2: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 8: rmnet_data3: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 9: rmnet_data4: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 10: rmnet_data5: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 11: rmnet_data6: <> mtu 1500 qdisc noop state DOWN group default >>>> qlen 1000 >>>> >> > link/[530] >>>> >> > 12: rmnet_data7: <UP,LOWER_UP> mtu 2000 qdisc htb state UNKNOWN >>>> group >>>> >> > default qlen 1000 >>>> >> > link/[530] >>>> >> > inet6 fe80::a6b7:c914:44de:639/64 scope link >>>> >> > valid_lft forever preferred_lft forever >>>> >> > 13: r_rmnet_data0: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 14: r_rmnet_data1: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 15: r_rmnet_data2: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 16: r_rmnet_data3: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 17: r_rmnet_data4: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 18: r_rmnet_data5: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 19: r_rmnet_data6: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 20: r_rmnet_data7: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 21: r_rmnet_data8: <> mtu 1500 qdisc noop state DOWN group default >>>> >> > qlen 1000 >>>> >> > link/[530] >>>> >> > 22: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq >>>> state >>>> >> > DOWN group default qlen 1000 >>>> >> > link/ether 04:d1:3a:07:70:4b brd ff:ff:ff:ff:ff:ff >>>> >> > 23: p2p0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq >>>> state >>>> >> > DOWN group default qlen 1000 >>>> >> > link/ether 06:d1:3a:07:70:4b brd ff:ff:ff:ff:ff:ff >>>> >> > >>>> >> > >>>> >> > This is on Arch Linux on Termux. >>>> >> > >>>> >> > Similar output on Termux available. >>>> >> > >>>> >> > >>>> >>> >> >> -- >> Jeff Squyres >> jsquy...@cisco.com >> >>
