<s>
OpenBLAS	B-Application
is	O
an	O
open-source	B-Application
implementation	O
of	O
the	O
BLAS	B-Application
(	O
Basic	B-Application
Linear	I-Application
Algebra	I-Application
Subprograms	I-Application
)	O
and	O
LAPACK	B-Application
APIs	B-Application
with	O
many	O
hand-crafted	O
optimizations	O
for	O
specific	O
processor	B-General_Concept
types	O
.	O
</s>
<s>
and	O
Loongson	B-Language
.	O
</s>
<s>
It	O
claims	O
to	O
achieve	O
performance	O
comparable	O
to	O
the	O
Intel	B-Language
MKL	I-Language
:	O
this	O
mostly	O
holds	O
true	O
on	O
the	O
BLAS	B-Application
part	O
,	O
while	O
the	O
LAPACK	B-Application
part	O
falls	O
behind	O
.	O
</s>
<s>
On	O
machines	O
that	O
support	O
the	O
AVX2	O
instruction	O
set	O
,	O
OpenBLAS	B-Application
can	O
achieve	O
similar	O
performance	O
to	O
MKL	O
,	O
but	O
there	O
are	O
currently	O
almost	O
no	O
open	O
source	O
libraries	O
comparable	O
to	O
MKL	O
on	O
CPUs	O
with	O
the	O
AVX512	O
instruction	O
set	O
.	O
</s>
<s>
OpenBLAS	B-Application
is	O
a	O
fork	O
of	O
GotoBLAS2	O
,	O
which	O
was	O
created	O
by	O
Kazushige	O
Goto	O
at	O
the	O
Texas	O
Advanced	O
Computing	O
Center	O
.	O
</s>
<s>
OpenBLAS	B-Application
was	O
developed	O
by	O
the	O
parallel	O
software	O
group	O
led	O
by	O
Professor	O
Yunquan	O
Zhang	O
from	O
the	O
Chinese	O
Academy	O
of	O
Sciences	O
.	O
</s>
<s>
OpenBLAS	B-Application
was	O
initially	O
only	O
for	O
the	O
Loongson	B-Language
CPU	O
platform	O
.	O
</s>
<s>
Since	O
GotoBLAS	B-Application
was	O
abandoned	O
,	O
the	O
successor	O
OpenBLAS	B-Application
is	O
now	O
developed	O
as	O
an	O
open	O
source	O
BLAS	B-Application
library	O
for	O
multiple	O
platforms	O
,	O
including	O
X86	B-Operating_System
,	O
ARMv8	O
,	O
MIPS	B-Device
,	O
and	O
RISC-V	B-Device
platforms	O
,	O
and	O
is	O
respected	O
for	O
its	O
excellent	O
portability	O
.	O
</s>
<s>
The	O
parallel	O
software	O
group	O
is	O
modernizing	O
OpenBLAS	B-Application
to	O
meet	O
current	O
computing	O
needs	O
.	O
</s>
<s>
For	O
example	O
,	O
OpenBLAS	B-Application
's	O
level-3	O
computations	O
were	O
primarily	O
optimized	O
for	O
large	O
and	O
square	O
matrices	O
(	O
often	O
considered	O
as	O
regular-shaped	O
matrices	O
)	O
.	O
</s>
<s>
Besides	O
this	O
,	O
the	O
compact	O
function	O
and	O
small	O
GEMM	O
will	O
also	O
be	O
supported	O
by	O
OpenBLAS	B-Application
.	O
</s>
