---
title: SparseGMRESVariant_t
framework: accelerate
role: symbol
role_heading: Structure
path: accelerate/sparsegmresvariant_t
---

# SparseGMRESVariant_t

Defines the exact variant of GMRES to implement

## Declaration

```swift
struct SparseGMRESVariant_t
```

## Topics

### Constants

- [SparseVariantDQGMRES](accelerate/sparsevariantdqgmres.md)
- [SparseVariantFGMRES](accelerate/sparsevariantfgmres.md)
- [SparseVariantGMRES](accelerate/sparsevariantgmres.md)

### Raw Values

- [init(_:)](accelerate/sparsegmresvariant_t/init(_:).md)
- [init(rawValue:)](accelerate/sparsegmresvariant_t/init(rawvalue:).md)
- [rawValue](accelerate/sparsegmresvariant_t/rawvalue.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)

## See Also

### Inspecting GMRES Options

- [atol](accelerate/sparsegmresoptions/atol.md)
- [maxIterations](accelerate/sparsegmresoptions/maxiterations.md)
- [nvec](accelerate/sparsegmresoptions/nvec.md)
- [reportError](accelerate/sparsegmresoptions/reporterror.md)
- [reportStatus](accelerate/sparsegmresoptions/reportstatus.md)
- [rtol](accelerate/sparsegmresoptions/rtol.md)
- [variant](accelerate/sparsegmresoptions/variant.md)