| Issue |
180342
|
| Summary |
test-suite::LoopVectorizationBenchmarks.test fails on Linux SPARC due to /proc/cpuinfo parsing
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
glaubitz
|
The (newly added?) test `test-suite::LoopVectorizationBenchmarks.test` fails on Linux SPARC with the following error message:
```
******************** TEST 'test-suite :: MicroBenchmarks/LoopVectorization/LoopVectorizationBenchmarks.test' FAILED ********************
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/LoopVectorizationBenchmarks --benchmark_format=json > /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/Output/LoopVectorizationBenchmarks.test.bench.json
+ /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/LoopVectorizationBenchmarks --benchmark_format=json
Unable to extract number of CPUs. If your platform uses /proc/cpuinfo, custom support may need to be added.
/var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/Output/LoopVectorizationBenchmarks.test_run.script: line 1: 1550029 Floating point exception /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/LoopVectorizationBenchmarks --benchmark_format=json > /var/lib/buildbot/workers/debian-stadler-sparc64/clang-sparc64-linux/test/sandbox/build/MicroBenchmarks/LoopVectorization/Output/LoopVectorizationBenchmarks.test.bench.json
********************
```
The key problem seems to be:
```
Unable to extract number of CPUs. If your platform uses /proc/cpuinfo, custom support may need to be added.
```
Since `/proc/cpuinfo` is not standardized, support needs to be added for every target.
On SPARC, the output of `/proc/cpuinfo` looks like this.
On UltraSPARC (pre-hypervisor platform):
```
root@raverin:~# cat /proc/cpuinfo
cpu : TI UltraSparc IIIi (Jalapeno)
fpu : UltraSparc IIIi integrated FPU
pmu : ultra3i
prom : OBP 4.22.33 2007/06/18 12:45
type : sun4u
ncpus probed : 1
ncpus active : 1
D$ parity tl1 : 0
I$ parity tl1 : 0
Cpu0ClkTck : 000000005995f5c0
cpucaps : flush,stbar,swap,muldiv,v9,ultra3,mul32,div32,v8plus,vis,vis2
MMU Type : Cheetah+
MMU PGSZs : 8K,64K,512K,4MB
root@raverin:~#
```
On SPARC T4 (hypervisor platform):
```
root@fermi:~# cat /proc/cpuinfo
cpu : UltraSparc T4 (Niagara4)
fpu : UltraSparc T4 integrated FPU
pmu : niagara4
prom : OBP 4.38.16 2018/11/28 07:24
type : sun4v
ncpus probed : 32
ncpus active : 32
D$ parity tl1 : 0
I$ parity tl1 : 0
cpucaps : flush,stbar,swap,muldiv,v9,blkinit,n2,mul32,div32,v8plus,popc,vis,vis2,ASIBlkInit,fmaf,vis3,hpc,ima,pause,cbcond,aes,des,kasumi,camellia,md5,sha1,sha256,sha512,mpmul,montmul,montsqr,crc32c
Cpu0ClkTck : 00000000a9beeee4
Cpu1ClkTck : 00000000a9beeee4
Cpu2ClkTck : 00000000a9beeee4
Cpu3ClkTck : 00000000a9beeee4
Cpu4ClkTck : 00000000a9beeee4
Cpu5ClkTck : 00000000a9beeee4
Cpu6ClkTck : 00000000a9beeee4
Cpu7ClkTck : 00000000a9beeee4
Cpu8ClkTck : 00000000a9beeee4
Cpu9ClkTck : 00000000a9beeee4
Cpu10ClkTck : 00000000a9beeee4
Cpu11ClkTck : 00000000a9beeee4
Cpu12ClkTck : 00000000a9beeee4
Cpu13ClkTck : 00000000a9beeee4
Cpu14ClkTck : 00000000a9beeee4
Cpu15ClkTck : 00000000a9beeee4
Cpu16ClkTck : 00000000a9beeee4
Cpu17ClkTck : 00000000a9beeee4
Cpu18ClkTck : 00000000a9beeee4
Cpu19ClkTck : 00000000a9beeee4
Cpu20ClkTck : 00000000a9beeee4
Cpu21ClkTck : 00000000a9beeee4
Cpu22ClkTck : 00000000a9beeee4
Cpu23ClkTck : 00000000a9beeee4
Cpu24ClkTck : 00000000a9beeee4
Cpu25ClkTck : 00000000a9beeee4
Cpu26ClkTck : 00000000a9beeee4
Cpu27ClkTck : 00000000a9beeee4
Cpu28ClkTck : 00000000a9beeee4
Cpu29ClkTck : 00000000a9beeee4
Cpu30ClkTck : 00000000a9beeee4
Cpu31ClkTck : 00000000a9beeee4
MMU Type : Hypervisor (sun4v)
MMU PGSZs : 8K,64K,4MB,256MB,2GB
State:
CPU0: online
CPU1: online
CPU2: online
CPU3: online
CPU4: online
CPU5: online
CPU6: online
CPU7: online
CPU8: online
CPU9: online
CPU10: online
CPU11: online
CPU12: online
CPU13: online
CPU14: online
CPU15: online
CPU16: online
CPU17: online
CPU18: online
CPU19: online
CPU20: online
CPU21: online
CPU22: online
CPU23: online
CPU24: online
CPU25: online
CPU26: online
CPU27: online
CPU28: online
CPU29: online
CPU30: online
CPU31: online
root@fermi:~#
```
On SPARC T5 (hypervisor platform):
```
root@landau:~# cat /proc/cpuinfo
cpu : UltraSparc T5 (Niagara5)
fpu : UltraSparc T5 integrated FPU
pmu : niagara5
prom : OBP 4.38.17 2019/01/25 08:22
type : sun4v
ncpus probed : 128
ncpus active : 128
D$ parity tl1 : 0
I$ parity tl1 : 0
cpucaps : flush,stbar,swap,muldiv,v9,blkinit,n2,mul32,div32,v8plus,popc,vis,vis2,ASIBlkInit,fmaf,vis3,hpc,ima,pause,cbcond,aes,des,kasumi,camellia,md5,sha1,sha256,sha512,mpmul,montmul,montsqr,crc32c
Cpu0ClkTck : 00000000d6924470
Cpu1ClkTck : 00000000d6924470
Cpu2ClkTck : 00000000d6924470
Cpu3ClkTck : 00000000d6924470
Cpu4ClkTck : 00000000d6924470
Cpu5ClkTck : 00000000d6924470
Cpu6ClkTck : 00000000d6924470
Cpu7ClkTck : 00000000d6924470
Cpu8ClkTck : 00000000d6924470
Cpu9ClkTck : 00000000d6924470
Cpu10ClkTck : 00000000d6924470
Cpu11ClkTck : 00000000d6924470
Cpu12ClkTck : 00000000d6924470
Cpu13ClkTck : 00000000d6924470
Cpu14ClkTck : 00000000d6924470
Cpu15ClkTck : 00000000d6924470
Cpu16ClkTck : 00000000d6924470
Cpu17ClkTck : 00000000d6924470
Cpu18ClkTck : 00000000d6924470
Cpu19ClkTck : 00000000d6924470
Cpu20ClkTck : 00000000d6924470
Cpu21ClkTck : 00000000d6924470
Cpu22ClkTck : 00000000d6924470
Cpu23ClkTck : 00000000d6924470
Cpu24ClkTck : 00000000d6924470
Cpu25ClkTck : 00000000d6924470
Cpu26ClkTck : 00000000d6924470
Cpu27ClkTck : 00000000d6924470
Cpu28ClkTck : 00000000d6924470
Cpu29ClkTck : 00000000d6924470
Cpu30ClkTck : 00000000d6924470
Cpu31ClkTck : 00000000d6924470
Cpu32ClkTck : 00000000d6924470
Cpu33ClkTck : 00000000d6924470
Cpu34ClkTck : 00000000d6924470
Cpu35ClkTck : 00000000d6924470
Cpu36ClkTck : 00000000d6924470
Cpu37ClkTck : 00000000d6924470
Cpu38ClkTck : 00000000d6924470
Cpu39ClkTck : 00000000d6924470
Cpu40ClkTck : 00000000d6924470
Cpu41ClkTck : 00000000d6924470
Cpu42ClkTck : 00000000d6924470
Cpu43ClkTck : 00000000d6924470
Cpu44ClkTck : 00000000d6924470
Cpu45ClkTck : 00000000d6924470
Cpu46ClkTck : 00000000d6924470
Cpu47ClkTck : 00000000d6924470
Cpu48ClkTck : 00000000d6924470
Cpu49ClkTck : 00000000d6924470
Cpu50ClkTck : 00000000d6924470
Cpu51ClkTck : 00000000d6924470
Cpu52ClkTck : 00000000d6924470
Cpu53ClkTck : 00000000d6924470
Cpu54ClkTck : 00000000d6924470
Cpu55ClkTck : 00000000d6924470
Cpu56ClkTck : 00000000d6924470
Cpu57ClkTck : 00000000d6924470
Cpu58ClkTck : 00000000d6924470
Cpu59ClkTck : 00000000d6924470
Cpu60ClkTck : 00000000d6924470
Cpu61ClkTck : 00000000d6924470
Cpu62ClkTck : 00000000d6924470
Cpu63ClkTck : 00000000d6924470
Cpu64ClkTck : 00000000d6924470
Cpu65ClkTck : 00000000d6924470
Cpu66ClkTck : 00000000d6924470
Cpu67ClkTck : 00000000d6924470
Cpu68ClkTck : 00000000d6924470
Cpu69ClkTck : 00000000d6924470
Cpu70ClkTck : 00000000d6924470
Cpu71ClkTck : 00000000d6924470
Cpu72ClkTck : 00000000d6924470
Cpu73ClkTck : 00000000d6924470
Cpu74ClkTck : 00000000d6924470
Cpu75ClkTck : 00000000d6924470
Cpu76ClkTck : 00000000d6924470
Cpu77ClkTck : 00000000d6924470
Cpu78ClkTck : 00000000d6924470
Cpu79ClkTck : 00000000d6924470
Cpu80ClkTck : 00000000d6924470
Cpu81ClkTck : 00000000d6924470
Cpu82ClkTck : 00000000d6924470
Cpu83ClkTck : 00000000d6924470
Cpu84ClkTck : 00000000d6924470
Cpu85ClkTck : 00000000d6924470
Cpu86ClkTck : 00000000d6924470
Cpu87ClkTck : 00000000d6924470
Cpu88ClkTck : 00000000d6924470
Cpu89ClkTck : 00000000d6924470
Cpu90ClkTck : 00000000d6924470
Cpu91ClkTck : 00000000d6924470
Cpu92ClkTck : 00000000d6924470
Cpu93ClkTck : 00000000d6924470
Cpu94ClkTck : 00000000d6924470
Cpu95ClkTck : 00000000d6924470
Cpu96ClkTck : 00000000d6924470
Cpu97ClkTck : 00000000d6924470
Cpu98ClkTck : 00000000d6924470
Cpu99ClkTck : 00000000d6924470
Cpu100ClkTck : 00000000d6924470
Cpu101ClkTck : 00000000d6924470
Cpu102ClkTck : 00000000d6924470
Cpu103ClkTck : 00000000d6924470
Cpu104ClkTck : 00000000d6924470
Cpu105ClkTck : 00000000d6924470
Cpu106ClkTck : 00000000d6924470
Cpu107ClkTck : 00000000d6924470
Cpu108ClkTck : 00000000d6924470
Cpu109ClkTck : 00000000d6924470
Cpu110ClkTck : 00000000d6924470
Cpu111ClkTck : 00000000d6924470
Cpu112ClkTck : 00000000d6924470
Cpu113ClkTck : 00000000d6924470
Cpu114ClkTck : 00000000d6924470
Cpu115ClkTck : 00000000d6924470
Cpu116ClkTck : 00000000d6924470
Cpu117ClkTck : 00000000d6924470
Cpu118ClkTck : 00000000d6924470
Cpu119ClkTck : 00000000d6924470
Cpu120ClkTck : 00000000d6924470
Cpu121ClkTck : 00000000d6924470
Cpu122ClkTck : 00000000d6924470
Cpu123ClkTck : 00000000d6924470
Cpu124ClkTck : 00000000d6924470
Cpu125ClkTck : 00000000d6924470
Cpu126ClkTck : 00000000d6924470
Cpu127ClkTck : 00000000d6924470
MMU Type : Hypervisor (sun4v)
MMU PGSZs : 8K,64K,4MB,256MB,2GB
State:
CPU0: online
CPU1: online
CPU2: online
CPU3: online
CPU4: online
CPU5: online
CPU6: online
CPU7: online
CPU8: online
CPU9: online
CPU10: online
CPU11: online
CPU12: online
CPU13: online
CPU14: online
CPU15: online
CPU16: online
CPU17: online
CPU18: online
CPU19: online
CPU20: online
CPU21: online
CPU22: online
CPU23: online
CPU24: online
CPU25: online
CPU26: online
CPU27: online
CPU28: online
CPU29: online
CPU30: online
CPU31: online
CPU32: online
CPU33: online
CPU34: online
CPU35: online
CPU36: online
CPU37: online
CPU38: online
CPU39: online
CPU40: online
CPU41: online
CPU42: online
CPU43: online
CPU44: online
CPU45: online
CPU46: online
CPU47: online
CPU48: online
CPU49: online
CPU50: online
CPU51: online
CPU52: online
CPU53: online
CPU54: online
CPU55: online
CPU56: online
CPU57: online
CPU58: online
CPU59: online
CPU60: online
CPU61: online
CPU62: online
CPU63: online
CPU64: online
CPU65: online
CPU66: online
CPU67: online
CPU68: online
CPU69: online
CPU70: online
CPU71: online
CPU72: online
CPU73: online
CPU74: online
CPU75: online
CPU76: online
CPU77: online
CPU78: online
CPU79: online
CPU80: online
CPU81: online
CPU82: online
CPU83: online
CPU84: online
CPU85: online
CPU86: online
CPU87: online
CPU88: online
CPU89: online
CPU90: online
CPU91: online
CPU92: online
CPU93: online
CPU94: online
CPU95: online
CPU96: online
CPU97: online
CPU98: online
CPU99: online
CPU100: online
CPU101: online
CPU102: online
CPU103: online
CPU104: online
CPU105: online
CPU106: online
CPU107: online
CPU108: online
CPU109: online
CPU110: online
CPU111: online
CPU112: online
CPU113: online
CPU114: online
CPU115: online
CPU116: online
CPU117: online
CPU118: online
CPU119: online
CPU120: online
CPU121: online
CPU122: online
CPU123: online
CPU124: online
CPU125: online
CPU126: online
CPU127: online
root@landau:~#
```
CC @koachan
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
