Hi,

I recommand inquiring about Smallapack, the Smalltalk interface to LAPACK,��on squeaksource.com or github. You'll get the speed of numpy. There is a Metacello configuration. I have not checked the port on current��

Pharo, but I can reactivate if there is some interest.

Le mer. 24 avr. 2019 �� 05:55, Jimmie Houchin <jlhouchin@gmail.com> a ��crit��:

I just recently discovered FloatArray by accident.

I was close to having to use Python/Numpy due to considerable
performance differences. Performance is very important.

In one of my test using a 212000 item array of floats and doing a sum on
each iteration through the array Pharo was taking 17 minutes verses
Python/Numpy taking 20 seconds. Using FloatArray closes the gap to 40
seconds. That is acceptable.

However when looking at the FloatArray comment it says it uses 32bit
floats. I need 64bit. I don't even know where to look to create 64bit
FloatArrays. I am surprised that they didn't get converted when moving
to 64bit Pharo.

Would I need to change VM source? Compile a new VM and create image side
classes? I have not messed with VM in years. I do not know where the
FloatArray plugin would be.

Any pointers would be a great help. If this needs to be on the vm-dev
list I can move it there.

Thanks.

Jimmie