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Safe cflags for Intel Atom c2758?
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1clue
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Joined: 05 Feb 2006
Posts: 2549

PostPosted: Tue Aug 04, 2015 11:08 pm    Post subject: Safe cflags for Intel Atom c2758? Reply with quote

Hi,

I have a supermicro A1SRM-LN7F-2758 motherboard: https://www.supermicro.com/products/motherboard/Atom/X10/A1SRM-LN7F-2758.cfm

It has an 8-core Intel Atom c2758 processor: http://ark.intel.com/products/77988/Intel-Atom-Processor-C2758-4M-Cache-2_40-GHz

I'm trying to come up with safe CFLAGS but nothing I google shows anything for cpu family 6 and model 77. It's a 'rangeley' architecture.

Can anyone give me a hand?

Thanks.

Code:

livecd gentoo # lscpu
Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                8
On-line CPU(s) list:   0-7
Thread(s) per core:    1
Core(s) per socket:    8
Socket(s):             1
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 77
Model name:            Intel(R) Atom(TM) CPU  C2758  @ 2.40GHz
Stepping:              8
CPU MHz:               2400.000
CPU max MHz:           2400.0000
CPU min MHz:           1200.0000
BogoMIPS:              4800.19
Virtualization:        VT-x
L1d cache:             24K
L1i cache:             32K
L2 cache:              1024K
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Buffoon
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Joined: 17 Jun 2015
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PostPosted: Tue Aug 04, 2015 11:16 pm    Post subject: Reply with quote

You can set -march=native and not to worry about it. Or you can run something like
Code:
gcc -march=native -E -v - </dev/null 2>&1 | grep cc1
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1clue
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PostPosted: Tue Aug 04, 2015 11:20 pm    Post subject: Reply with quote

Thanks.
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