Fix minimum version of cublas for grouped gemm

[pggPL]

Description

Fixes build issue introduced with #2502 - that PR had incorrect minimal version of cublas and it results in build fails on some containers.

Type of change

• Documentation change (change only to the documentation, either a fix or a new content)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Infra/Build change
• Code refactoring

Checklist:

• I have read and followed the contributing guidelines
• The functionality is complete
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[pggPL]

/te-ci

[greptile-apps]

Greptile Overview

Greptile Summary

This PR corrects the minimum cuBLAS version requirement for grouped GEMM from 13.1.0 to 13.2.0, fixing build failures introduced in PR #2502.

Changes:

• Updated compile-time version checks from CUBLAS_VERSION >= 130100 to CUBLAS_VERSION >= 130200
• Updated runtime version checks from cublas_version() >= 130100 to cublas_version() >= 130200
• Updated error messages and comments to reference cuBLAS 13.2+ instead of 13.1+
• Fixed namespace qualification for cuda:: function calls to use transformer_engine::cuda::

Issue Found:

• Line 642 in cublaslt_grouped_gemm.cu error message still says "upgrade to CUDA 13.1 or newer" but should say "CUDA 13.2 or newer"

Confidence Score: 4/5

• Safe to merge once the error message at line 642 is corrected
• The PR correctly fixes the version check from 13.1.0 to 13.2.0 across all code paths, but contains one inconsistent error message that references CUDA 13.1 instead of 13.2
• transformer_engine/common/gemm/cublaslt_grouped_gemm.cu line 642 needs correction

Important Files Changed

Filename	Overview
transformer_engine/common/gemm/cublaslt_grouped_gemm.cu	Updated version checks from 13.1.0 to 13.2.0, but error message at line 642 still references CUDA 13.1
transformer_engine/common/include/transformer_engine/gemm.h	Updated documentation to reference cuBLAS 13.2+, but still mentions CUDA 13.1+ which may be inconsistent

Sequence Diagram

sequenceDiagram
    participant User as User Code
    participant API as nvte_grouped_gemm
    participant Check as Version Check
    participant cuBLAS as cuBLAS 13.2+
    
    User->>API: Call nvte_grouped_gemm()
    API->>Check: Verify CUBLAS_VERSION >= 130200
    alt Compile-time check fails
        Check-->>User: Error: Requires cuBLAS 13.2+
    else Compile-time check passes
        API->>Check: Verify runtime cublas_version() >= 130200
        alt Runtime check fails
            Check-->>User: Error: Runtime cuBLAS too old
        else Runtime check passes
            API->>Check: Verify SM arch >= 100 (Blackwell)
            alt Architecture check fails
                Check-->>User: Error: Requires Blackwell or newer
            else All checks pass
                API->>cuBLAS: Execute grouped GEMM
                cuBLAS-->>API: Result
                API-->>User: Success
            end
        end
    end

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[pggPL]

/te-ci jax L0

[pggPL]

/te-ci pytorch

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[zhongbozhu]

shouldn't there be more than one places to add this transformer_engine::?

[pggPL]

/te-ci

[pggPL]

/te-ci

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[greptile-apps]

_{2 files reviewed, 1 comment}

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[greptile-apps]

error message says "upgrade to CUDA 13.1 or newer" but should say "CUDA 13.2 or newer" to match the cuBLAS 13.2+ requirement

Suggested change

	CUBLAS_VERSION, ". Please upgrade to CUDA 13.1 or newer.");
	CUBLAS_VERSION, ". Please upgrade to CUDA 13.2 or newer.");