Openmpi There Are Not Enough Slots Available In The System To Satisfy
- Openmpi There Are Not Enough Slots Available In The System To Satisfy Someone
- Openmpi There Are Not Enough Slots Available In The System To Satisfy Two
- Openmpi There Are Not Enough Slots Available In The System To Satisfy The Following
- Openmpi There Are Not Enough Slots Available In The System To Satisfy One
Why does openmpi think only 2 slots are available when in fact 4 processors are available? As per the ark.intel.com page for this CPU 1: # of Cores 2 # of Threads 4 So openmpi seems to be (correctly, IMHO) counting cores here, rather than threads. OMPI users not enough slots available (too old to reply) Mahmood Naderan.
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Background information
What version of Open MPI are you using? (e.g., v1.10.3, v2.1.0, git branch name and hash, etc.)
v3.1.0
Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)
Installed from precompiled distribution package.
Please describe the system on which you are running
- Operating system/version:Linux, Archlinux
- Computer hardware:x86_64, processor belonging to the Intel i7 family
- Network type:Mellanox Technologies MT27500 Family [ConnectX-3]
Openmpi There Are Not Enough Slots Available In The System To Satisfy Someone
Details of the problem
Hello,I'm trying to run a simple (echo) MPI program over two hosts connected through a direct cable over Infiniband.Each host has a 40 Gbps Mellanox card, with inifiniband support. Infiniband/ibverbs/RDMA software is provided by a rdma-core package (https://github.com/linux-rdma/rdma-core).(The two hosts can also communicate on separate IP LAN).The infiniband setup is already working: I'm able to run libibverbs programs over the Mellanox NICs.
However, when I try to run my MPI program forcing openib, I get the following:
Openmpi There Are Not Enough Slots Available In The System To Satisfy Two
It seems it fails to load openib, but I don't see enough information to narrow down the issue.Any suggestions?
Openmpi There Are Not Enough Slots Available In The System To Satisfy The Following
Openmpi There Are Not Enough Slots Available In The System To Satisfy One
Thanks a lot,Vincenzo