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This is the response I got from Amazon. I haven't tried it but it seems that only certain instance types actually support AVX and the rest are falsely reporting that they do, which crashes software using the cpu flags to detect AVX.QuoteHi,AVX instructions are supported only when HVM virtualization is used. There are HVM versions of the Amazon Linux AMI and Ubuntu AMI available. Unfortunately AVX cannot be used with a PV Linux AMI due to incompatibilities with some Linux kernels regarding XSAVE instructions.A list of HVM Amazon Linux AMI IDs is available here: http://aws.amazon.com/amazon-linux-ami/I apologize for the confusion and any inconvenience this caused.
Hi,AVX instructions are supported only when HVM virtualization is used. There are HVM versions of the Amazon Linux AMI and Ubuntu AMI available. Unfortunately AVX cannot be used with a PV Linux AMI due to incompatibilities with some Linux kernels regarding XSAVE instructions.A list of HVM Amazon Linux AMI IDs is available here: http://aws.amazon.com/amazon-linux-ami/I apologize for the confusion and any inconvenience this caused.
Actually you have to use the SSE4 because some of the EC2 Instance options do not let you use AVX even though it's incorrectly listed as being able to.
Well, unfortunately even with RC2 it is not yet fixed. Anyway your work-around is working. (Command line parameter)If someone is using my ptstools (description here: http://www.dmsp.de/Protoshares)... meanwhile I included a watchdog resulting in a fallback to SSE4 after having tried (and failed) with AVX. Nevertheless all parameters are passed transparently to the ptsminer itself. If you did not enter any additional parameters it used the default set with AVX -> SSE4 fallback.
Yeah, I can disable AVX. I guess my question is more along the lines of whether anyone has gotten AVX to work on an EC2 instance. Amazon claims it is supported but for some reason the program dies when an AVX instruction is encountered.
Same issue , illegal instruction (core dumped) with 0.7avx on beeer via ec2