If I'm not mistaken, hcoll is playing with the opal_progress in a way that
conflicts with the blessed usage of progress in OMPI and prevents other
components from advancing and timely completing requests. The impact is
minimal for sequential applications using only blocking calls, but is
Hello Liam
dmidecode is usually reserved to root only because it uses SMBIOS or
whatever hardware/ACPI/... tables. Those tables are read by the Linux
kernel and exported to non-root users in sysfs:
$ cat /sys/bus/pci/devices/:ae:0c.6/numa_node
1
However this file isn't that good because
> On Feb 3, 2020, at 12:35 PM, Bennet Fauber wrote:
>
> This is what CentOS installed.
>
> $ yum list installed hwloc\*
> Loaded plugins: langpacks
> Installed Packages
> hwloc.x86_64 1.11.8-4.el7
> @os
> hwloc-devel.x86_64
This is what CentOS installed.
$ yum list installed hwloc\*
Loaded plugins: langpacks
Installed Packages
hwloc.x86_64 1.11.8-4.el7@os
hwloc-devel.x86_64 1.11.8-4.el7@os
hwloc-libs.x86_64
On Feb 3, 2020, at 10:03 AM, Bennet Fauber wrote:
>
> Ah, ha!
>
> Yes, that seems to be it. Thanks.
Ok, good. I understand that UCX is the "preferred" mechanism for IB these days.
> If I might, on a configure related note ask, whether, if we have
> these installed with the CentOS 7.6 we
Newbie question.
I know that dmidecode uses the num_node files under /sys/devices/pcie..., but
hwloc does not seem
to use the same mechanism to determine which PCI devices are on which numa
node? From which
file is it deriving the information?
Regards,
Liam
Hi,
in one of our codes, we want to create a log of events that happen in
the MPI processes, where the number of these events and their timing is
unpredictable.
So I implemented a simple test code, where process 0
creates a thread that is just busy-waiting for messages from any
process, and
Ah, ha!
Yes, that seems to be it. Thanks.
If I might, on a configure related note ask, whether, if we have
these installed with the CentOS 7.6 we are running
$ yum list installed libevent\*
Loaded plugins: langpacks
Installed Packages
libevent.x86_64 2.0.21-4.el7
