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

..

benchmark

Improvements to samples

2020-04-07 17:58:47 +03:00

bwtest

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

cpptest

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

ctest

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

genbenchmarkscripts

Added missing files

2020-04-09 19:24:55 +03:00

mpitest

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