Oskar Lappi
f7d8de75d2
Reduction test pipeline added to mpitest, Error struct changed: new label field
...
- CHANGED: Error struct has a new label field for labeling an error
- The label is what is printed to screen
- vtxbuf name lookup moved out of printErrorToScreen/print_error_to_screen
- NEW: acScalReductionTestCase and acVecReductionTestCase
- Define new test cases by adding them to a list in samples/mpitest/main.cc:main
- Minor style change in verification.c to make all Verification functions similar
and fit one screen
2020-06-04 15:10:35 +03:00
jpekkila
226de32651
Added model solution for reductions and functions for automated testing
2020-06-03 13:37:00 +03:00
jpekkila
176ceae313
Fixed various compilation warnings
2020-05-30 20:23:53 +03:00
jpekkila
ec59cdb973
Some formatting and unimportant changes to samples
2020-05-26 18:57:46 +03:00
jpekkila
9cd5909f5a
BWtest calculates now aggregate bandwidths per process instead of assuming that all neighbor communication can be done in parallel (Within a node one can have parallel P2P connections to all neighbors and we have an insane total bandwidth, but this is not the case with network, we seem to have only one bidirectional socket)
2020-04-09 20:28:04 +03:00
jpekkila
d4a84fb887
Added a PCIe bandwidth test
2020-04-09 20:04:54 +03:00
jpekkila
d6e74ee270
Added missing files
2020-04-09 19:24:55 +03:00
jpekkila
fb41741d74
Improvements to samples
2020-04-07 17:58:47 +03:00
jpekkila
cc9d3f1b9c
Found a workaround that gives good inter and intra-node performance. HPC-X MPI implementation does not know how to do p2p comm with pinned arrays (should be 80 GiB/s, measured 10 GiB/s) and internode comm is super slow without pinned arrays (should be 40 GiB/s, measured < 1 GiB/s). Made a proof of concept communicator that pins arrays that are send or received from another node.
2020-04-05 20:15:32 +03:00
jpekkila
88e53dfa21
Added a little program for testing the bandwidths of different MPI comm styles on n nodes and processes
2020-04-05 17:09:57 +03:00
Johannes Pekkila
9b6d927cf1
It might be better to benchmark MPI codes without synchronization because of overhead of timing individual steps
2020-03-31 12:37:54 +02:00
jpekkila
850b37e8c8
Added a switch for generating strong and weak scaling results
2020-03-30 17:56:12 +03:00
jpekkila
d4eb3e0d35
Benchmarks are now written into a csv-file
2020-03-30 17:41:42 +03:00
jpekkila
af531c1f96
Added a sample for benchmarking
2020-03-30 17:22:41 +03:00
jpekkila
5a898b8e95
mpitest now gives a warning instead of a compilation failure if MPI is not enabled
2020-03-26 15:31:29 +02:00
jpekkila
329a71d299
Added an example how to run the code with MPI
2020-03-26 15:02:55 +02:00
jpekkila
67f2fcc88d
Setting inv_dsx etc explicitly is no longer required as they are set to default values in acc/stdlib/stdderiv.h
2020-01-28 18:22:27 +02:00
jpekkila
0ccd4e3dbc
Major improvement: uniforms can now be set to default values. The syntax is the same as for setting any other values, f.ex. 'uniform Scalar a = 1; uniform Scalar b = 0.5 * a;'. Undefined uniforms are still allowed, but in this case the user should load a proper value into it during runtime. Default uniform values can be overwritten by calling any of the uniform loader funcions (like acDeviceLoadScalarUniform). Improved also error checking. Now there are explicit warnings if the user tries to load an invalid value into a device constant.
2020-01-28 18:17:31 +02:00
jpekkila
fdd829b888
Cleaned up samples and removed old unused stuff. Simplified CMake files.
2020-01-23 20:00:19 +02:00
jpekkila
f77ab8a809
Removed unnecessary README and incorrect building instructions for mpitest
2020-01-16 14:49:07 +02:00
jpekkila
65d9274eaa
Updated samples to have consistent naming
2020-01-15 16:56:02 +02:00
jpekkila
efa95147f3
Renamed exampleproject -> cpptest
2020-01-15 16:25:27 +02:00
jpekkila
23efcb413f
Introduced a sample directory and moved all non-library-components from src to there
2020-01-15 16:24:38 +02:00
