[BUG] malloc error when using likwid-pin on ARM Jetson AGX Xavier (ARMv8) #488
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SF-N
changed the title
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It is hart to tell where the problem is exactly. It might be the build options for the Lua interpreter or inside the LIKWID library. In order to find the locations:
As soon as it stops, type |
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Thanks, when trying this inside the likwid-5.2.2 folder, I get: Does this help? |
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Yes, it helps, thank you. But it is still not easy to find the problem. The only reason I could think of would be if the detection "how many hardware threads the system" has failed. This is of course a fundamental information and I'm surprised it reaches that point without that info. Can you please send me the content of |
icarus@ubuntu:/$ cat /proc/cpuinfo
processor : 0
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 1
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 2
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 3
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 4
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 5
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 6
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613
processor : 7
model name : ARMv8 Processor rev 0 (v8l)
BogoMIPS : 62.50
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm dcpop
CPU implementer : 0x4e
CPU architecture: 8
CPU variant : 0x0
CPU part : 0x004
CPU revision : 0
MTS version : 55637613 |
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I tested the current parser and found a bug but it is not relevant for your issue. Can you please do the And provide the content of the files As a last resort, comment out the line |
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I get: And When commenting out |
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OK, very surprising. The failing line contains only It seems I have broken the "disabling of hwloc" somewhen in the past. Hwloc works on almost all systems that's why the disabling is tested rarely/almost never. |
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Can you please run |
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Here it is: |
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As I thought: but it should be 1 since you seem to have a single L3 cache. The architecture is quite strange (when looking at the output): There are four sockets, each with 2 cores but all four sockets share a single L3 cache. It might be but it is against the current logic in LIKWID that each socket has its own L3 cache. I'll check the cache domain detection |
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So, it seems the 4 sockets cause the problem. The cache domain detection divides "Total number of caches" by "Socket count" and casts it to Integer. This results in 0 cache domains per socket. Hard to fix without access for testing but I'll try to create a patch. |
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With likwid-pin -- Version 5.2.2 (commit: 233ab943543480cd46058b34616c174198ba0459) I get the following error on an ARMv8 processor (using Linux) just in the beginning before the program starts:
e.g. when calling
likwid-pin -c S0:0-3 ./executableThe text was updated successfully, but these errors were encountered: