• 2019 Update 7
  • 03/31/2020
Contents

Error Message: Too Many Open Files

Intel® MPI Library Developer Guide for Linux* OS

E
rror Message

[proxy:0:0@host1] HYD_spawn (../../../../../src/pm/i_hydra/libhydra/spawn/intel/hydra_spawn.c:57): pipe error (Too many open files) [proxy:0:0@host1] launch_processes (../../../../../src/pm/i_hydra/proxy/proxy.c:509): error creating process [proxy:0:0@host1] main (../../../../../src/pm/i_hydra/proxy/proxy.c:860): error launching_processes

Cause

Too many processes per node are launched on Linux* OS.

Solution

Specify fewer processes per node by the
-ppn
option or the
I_MPI_PERHOST
environment variable.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804