Architecture support

[sanjayankur31]

I wanted to confirm what architectures NEURON supports. This is because I see that Random123 only supports x86_64, i386 and powepc, and as NEURON depends on it, NEURON can also only support these. Would that be correct? Could this be added in the documentation somewhere if it is?

This is the line of code in Random123 with the checks: https://github.com/neuronsimulator/nrn/blob/master/src/Random123/features/gccfeatures.h#L37

Thanks!

[pramodk]

@sanjayankur31 : I use/test neuron on x86_64, powerpc, aarch64 and fujitsu sparc platforms. Do you have any specific platform that you are looking for?

(gccfeatures.h needs to be updated for aarch64, will open PR shortly).

[sanjayankur31]

@pramodk I only use it on x86_64 myself, but I'm packaging it for Fedora which supports multiple architectures (listed here), so I just wanted to confirm which of these I should exclude from the builds.

[pramodk]

🔗 Primary Architectures
ARM-hfp (32-bit, little-endian, hfp for ARMv7->) (as of Fedora 20)
x86 (32-bit for i686->) (until Fedora 25)
x86_64 (64-bit)
ARM AArch64 (64-bit, little-endian for ARMv8->)

Above are supported

🔗 Alternative Architectures
ARM-sfp (32-bit, little-endian, sfp for ARMv5->)
IA64
MIPS-64el (mips64r2, little endian, n64 ABI)
MIPS-el (mips32r2, little endian, o32 ABI)
MIPS-n32el (mips64r2, little endian, n32 ABI)
Parisc
PowerPC (32-bit)
PowerPC64 (64-bit, big-endian for POWER5->)
PowerPC64le (64-bit, little-endian for POWER8->)
RISC-V (64-bit open source ISA)
s390x (64-bit for zEC12->)
SPARC (32-bit)
SPARC64 (64-bit for sun4u->)
x86 (32-bit for i686->) (as of Fedora 26)

from above list, I am not sure about :

• ARM-sfp
• MIPS
• Parisc
• RISC-V
• s390x
• SPARC

For the rest I have build neuron (recently or in the past).

[pramodk]

I assume we have provided necessary information. Feel free to reopen this if you have more questions. Thanks!