Not able to compile on intel based Mac

[Ykid]

Issue I have

= note: ld: warning: could not create compact unwind for _chseqr_: stack subq instruction is too different from dwarf stack size
          ld: warning: could not create compact unwind for _dhseqr_: stack subq instruction is too different from dwarf stack size
          ld: warning: could not create compact unwind for _shseqr_: stack subq instruction is too different from dwarf stack size
          ld: warning: could not create compact unwind for _zhseqr_: stack subq instruction is too different from dwarf stack size
          Undefined symbols for architecture x86_64:
            "__gfortran_concat_string", referenced from:
                _dormbr_ in libopenblas_src-4151971bd483fad6.rlib(dormbr.o)
                _dormlq_ in libopenblas_src-4151971bd483fad6.rlib(dormlq.o)
                _dormqr_ in libopenblas_src-4151971bd483fad6.rlib(dormqr.o)
          ld: symbol(s) not found for architecture x86_64
          clang: error: linker command failed with exit code 1 (use -v to see invocation)

Code to reproduce this issue

use ndarray::{array, Array, Ix2};
use ndarray_linalg::{LeastSquaresSvd, LeastSquaresSvdInto, LeastSquaresSvdInPlace};

fn main() {
    let array_a: Array<f64, Ix2> = array![[1.,2.]];
    let array_b: Array<f64, Ix2> = array![[1.,2.]];
    let solution = array_b.least_squares(&array_a).unwrap().solution;
    println!("{:?}", solution);
}

cargo.toml

[package]
name = "example"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
ndarray = { version = "0.15.0", features = ["approx", "blas"] }
ndarray-stats = "0.5"
ndarray-linalg = { version = "0.14.1", features = ["openblas-static"] }

just do cargo run will reproduce this issue

Version information

rustup --version
rustup 1.24.3 (ce5817a94 2021-05-31)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.63.0-nightly (bb8c2f411 2022-06-19)`

rustc --version
rustc 1.63.0-nightly (bb8c2f411 2022-06-19)

cargo --version
cargo 1.63.0-nightly (8d42b0e87 2022-06-17)

MacOS 12 with Intel Chip

Any help/pointer will be appreciated!

[jturner314-nrl]

Fwiw, I can reproduce this (Intel CPU, macOS 10.15, rustc 1.60.0). Changing openblas-static to openblas-system in the Cargo.toml (to link to the system OpenBLAS instead of building it from source) is a workaround on my system. There are a few known issues with building on MacOS listed at blas-lapack-rs/openblas-src#54, although the specific issues listed there are different.

[martin-frbg]

maybe related to https://github.com/blas-lapack-rs/openblas-src#20 , as they appear to have been post-processing the generated Makefile.conf to eliminate the libgfortran reference ? (that would work for pure BLAS builds as it is"only" LAPACK that is written in Fortran) Upcoming OpenBLAS 0.3.21 will include copies of the LAPACK sources converted to C

[jianshu93]

Hello all,

It seems with OpenBLAS 0.3.21, similar error appears when statically linking (dynamic linking is ok) for my intel MacOS (Monterey):

= note: Undefined symbols for architecture x86_64:
"__gfortran_concat_string", referenced from:
sormbr in libopenblas_src-6aab0a1a3b783b73.rlib(sormbr.o)
sormlq in libopenblas_src-6aab0a1a3b783b73.rlib(sormlq.o)
sormqr in libopenblas_src-6aab0a1a3b783b73.rlib(sormqr.o)
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status

I tried both to use CC from brew installed gcc and also llvm clang (also brew installed), put /usr/local/bin/CC and /usr/local/bin/cc to link to the brew installed gcc or clang. Neither works.

Hope there is a work around for static link, which is quite useful for me.

Thanks,

Jianshu

[martin-frbg]

when doing static linking, you will need to link in libgfortran.a - or build OpenBLAS-0.3.21 with the NOFORTRAN option to get f2c-translated versions of the LAPACK functions instead of the original Fortran ones.

[jianshu93]

Hello，

How exactly can I do that？ Since i use v 0.15 from crate.io.

Thanks

Jianshu

[jianshu93]

This is intel-mkl-static static link error (dynamic link is ok) on intel MacOS:

= note: Undefined symbols for architecture x86_64:
"_cblas_sgemm", referenced from:
__ZN7ndarray6linalg11impl_linalg12mat_mul_impl17h92b8364d9bc0e871E in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
"sgelqf", referenced from:
__ZN8annembed5tools9svdapprox5do_qr17h0d0d10466375a1bcE in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
"sorglq", referenced from:
__ZN8annembed5tools9svdapprox5do_qr17h0d0d10466375a1bcE in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
"sgesdd", referenced from:
ZN42$LT$f32$u20$as$u20$lax..svddc..SVDDC$GT$5svddc17h7a7540c7445de7f6E in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
"_cblas_sgemv", referenced from:
__ZN8annembed5tools9svdapprox16MatRepr$LT$F$GT$14mat_dot_vector17h984c90a3c75e92a8E in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
"_cblas_sdot", referenced from:
_ZN7ndarray6linalg11impl_linalg110$LT$impl$u20$ndarray..ArrayBase$LT$S$C$ndarray..dimension..dim..Dim$LT$$u5b$usize$u3b$$u20$1$u5d$$GT$$GT$$GT$3dot17h09e278420f5f78ceE in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
__ZN8annembed5tools9svdapprox20orthogonalize_with_q17hec15268f252f9042E in annembed-61e783314e7c0a52.annembed.5de54790-cgu.9.rcgu.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status

error: could not compile annembed due to previous error

Any idea?

Thanks,

Jianshu

[jianshu93]

running example with static is ok. The above mentioned error appeared when link to a binary statically for other binary crates.

Jianshu