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SWITCH_RATIO for Arm(R) Neoverse(TM) architecture 

This seems like a good balance of values for reasonably sized matrices. With `SWITCH_RATIO=16` the DGEMM scales better to bigger sizes but the better solution would be some kind of
thread throttling so I've gone with `SWITCH_RATIO=8`.
This commit is contained in:
Chris Sidebottom 2022-12-05 15:17:52 +00:00
parent a5e1fdd525
commit 5b165420b5
1 changed files with 18 additions and 2 deletions
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20
param.h
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@ -1,5 +1,5 @@
/*****************************************************************************
Copyright (c) 2011-2014, The OpenBLAS Project
Copyright (c) 2011-2023, The OpenBLAS Project
All rights reserved.
Redistribution and use in source and binary forms, with or without
@ -3338,6 +3338,12 @@ is a big desktop or server with abundant cache rather than a phone or embedded d
#elif defined(NEOVERSEN1)
#if defined(XDOUBLE) || defined(DOUBLE)
#define SWITCH_RATIO 8
#else
#define SWITCH_RATIO 16
#endif
#define SGEMM_DEFAULT_UNROLL_M 16
#define SGEMM_DEFAULT_UNROLL_N 4
@ -3367,7 +3373,11 @@ is a big desktop or server with abundant cache rather than a phone or embedded d
#elif defined(NEOVERSEV1)
#define SWITCH_RATIO 16
#if defined(XDOUBLE) || defined(DOUBLE)
#define SWITCH_RATIO 8
#else
#define SWITCH_RATIO 16
#endif
#define SGEMM_DEFAULT_UNROLL_M 16
#define SGEMM_DEFAULT_UNROLL_N 4
@ -3398,6 +3408,12 @@ is a big desktop or server with abundant cache rather than a phone or embedded d
#elif defined(NEOVERSEN2)
#if defined(XDOUBLE) || defined(DOUBLE)
#define SWITCH_RATIO 8
#else
#define SWITCH_RATIO 16
#endif
#undef SBGEMM_ALIGN_K
#define SBGEMM_ALIGN_K 4