Hi all,
First, let me thank you for this project. Awesome!
We've been playing with /libpfm4/ these days, but couldn't get it
working on our 2 *AMD ZEN3* CPUs.
I pasted their specifications as given by /PAPI/ below.
We think the problem with /libpfm4/ in our case is that in the function
*amd64_get_revision* (in /lib/pfmlib_amd64.c/), there is a switch over
the /model/, and only model /1/ is supported while our CPUs showcase
model /80/ and /33/.
We can propose the following patch, but we don't know if this is the
right fix, or if there is a specific reason why only model /1/ is supported.
What do you think?
Many thanks in advance,
Romin
diff --git a/lib/pfmlib_amd64.c b/lib/pfmlib_amd64.c
index 8e07525..b60b362 100644
--- a/lib/pfmlib_amd64.c
+++ b/lib/pfmlib_amd64.c
@@ -182,11 +182,13 @@ amd64_get_revision(pfm_amd64_config_t *cfg)
rev = PFM_PMU_AMD64_FAM16H;
} else if (cfg->family == 25) { /* family 19h */
switch (cfg->model) {
- case 1:
+ case 1:
+ case 33:
+ case 80:
rev = PFM_PMU_AMD64_FAM19H_ZEN3;
- break;
- default:
- ;
+ break;
+ default:
+ break;
}
}
Available components and hardware information.
--------------------------------------------------------------------------------
PAPI version : 6.0.0.1
Operating system : Linux 5.15.0-52-generic
Vendor string and code : AuthenticAMD (2, 0x2)
Model string and code : AMD Ryzen 7 5800H with Radeon Graphics (80, 0x50)
CPU revision : 0.000000
CPUID : Family/Model/Stepping 25/80/0, 0x19/0x50/0x00
CPU Max MHz : 4463
CPU Min MHz : 400
Total cores : 16
SMT threads per core : 2
Cores per socket : 8
Sockets : 1
Cores per NUMA region : 16
NUMA regions : 1
Running in a VM : no
Number Hardware Counters : 0
Max Multiplex Counters : 384
Fast counter read (rdpmc): no
Available components and hardware information.
--------------------------------------------------------------------------------
PAPI version : 6.0.0.1
Operating system : Linux 5.15.0-46-generic
Vendor string and code : AuthenticAMD (2, 0x2)
Model string and code : AMD Ryzen 9 5950X 16-Core Processor (33, 0x21)
CPU revision : 0.000000
CPUID : Family/Model/Stepping 25/33/0, 0x19/0x21/0x00
CPU Max MHz : 5083
CPU Min MHz : 2200
Total cores : 32
SMT threads per core : 2
Cores per socket : 16
Sockets : 1
Cores per NUMA region : 32
NUMA regions : 1
Running in a VM : no
Number Hardware Counters : 0
Max Multiplex Counters : 384
Fast counter read (rdpmc): yes
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